Home / 15,487.08-21,375.54-9,523.86

Finding the Fourth Proportional to 15,487.08, 21,375.54 and 9,523.86

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Solution

The fourth proportional to 15,487.08, 21,375.54 and 9,523.86 is: 13,145.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487.08 : 21,375.54 = 9,523.86 : x
  2. Step 2: Convert to fraction form
    15,487.08/21,375.54 = 9,523.86/x
  3. Step 3: Cross multiply
    15,487.08x = 21,375.54 × 9,523.86
  4. Step 4: Simplify right side
    15,487.08x = 203,577,650.38
  5. Step 5: Solve for x
    x = 203,577,650.38/15,487.08
  6. Step 6: Final answer
    x = 13,145.00

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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.