Home / 15,715.20-23,569.92-6,354.72

Finding the Fourth Proportional to 15,715.20, 23,569.92 and 6,354.72

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Solution

The fourth proportional to 15,715.20, 23,569.92 and 6,354.72 is: 9,530.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,715.20 : 23,569.92 = 6,354.72 : x
  2. Step 2: Convert to fraction form
    15,715.20/23,569.92 = 6,354.72/x
  3. Step 3: Cross multiply
    15,715.20x = 23,569.92 × 6,354.72
  4. Step 4: Simplify right side
    15,715.20x = 149,780,242.02
  5. Step 5: Solve for x
    x = 149,780,242.02/15,715.20
  6. Step 6: Final answer
    x = 9,530.92

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1.5x scale

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.