Home / 10,216.20-15,328.08-4,377.36

Finding the Fourth Proportional to 10,216.20, 15,328.08 and 4,377.36

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Solution

The fourth proportional to 10,216.20, 15,328.08 and 4,377.36 is: 6,567.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,216.20 : 15,328.08 = 4,377.36 : x
  2. Step 2: Convert to fraction form
    10,216.20/15,328.08 = 4,377.36/x
  3. Step 3: Cross multiply
    10,216.20x = 15,328.08 × 4,377.36
  4. Step 4: Simplify right side
    10,216.20x = 67,096,524.27
  5. Step 5: Solve for x
    x = 67,096,524.27/10,216.20
  6. Step 6: Final answer
    x = 6,567.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.