Home / 16,216.44-22,378.18-9,142.76

Finding the Fourth Proportional to 16,216.44, 22,378.18 and 9,142.76

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Solution

The fourth proportional to 16,216.44, 22,378.18 and 9,142.76 is: 12,616.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,216.44 : 22,378.18 = 9,142.76 : x
  2. Step 2: Convert to fraction form
    16,216.44/22,378.18 = 9,142.76/x
  3. Step 3: Cross multiply
    16,216.44x = 22,378.18 × 9,142.76
  4. Step 4: Simplify right side
    16,216.44x = 204,598,328.98
  5. Step 5: Solve for x
    x = 204,598,328.98/16,216.44
  6. Step 6: Final answer
    x = 12,616.72

Related Problems

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Half scale
Find fourth proportional to 32,432.88, 44,756.36 and 18,285.52
Double scale
Find fourth proportional to 16,217.44, 22,379.56 and 9,143.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.