Home / 10,455.92-15,687.12-4,613.12

Finding the Fourth Proportional to 10,455.92, 15,687.12 and 4,613.12

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Solution

The fourth proportional to 10,455.92, 15,687.12 and 4,613.12 is: 6,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.92 : 15,687.12 = 4,613.12 : x
  2. Step 2: Convert to fraction form
    10,455.92/15,687.12 = 4,613.12/x
  3. Step 3: Cross multiply
    10,455.92x = 15,687.12 × 4,613.12
  4. Step 4: Simplify right side
    10,455.92x = 72,366,567.01
  5. Step 5: Solve for x
    x = 72,366,567.01/10,455.92
  6. Step 6: Final answer
    x = 6,921.11

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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.