Home / 16,216.28-22,378.49-9,142.68

Finding the Fourth Proportional to 16,216.28, 22,378.49 and 9,142.68

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Solution

The fourth proportional to 16,216.28, 22,378.49 and 9,142.68 is: 12,616.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,216.28 : 22,378.49 = 9,142.68 : x
  2. Step 2: Convert to fraction form
    16,216.28/22,378.49 = 9,142.68/x
  3. Step 3: Cross multiply
    16,216.28x = 22,378.49 × 9,142.68
  4. Step 4: Simplify right side
    16,216.28x = 204,599,496.87
  5. Step 5: Solve for x
    x = 204,599,496.87/16,216.28
  6. Step 6: Final answer
    x = 12,616.92

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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.