Home / 15,487.08-21,372.24-9,113.91

Finding the Fourth Proportional to 15,487.08, 21,372.24 and 9,113.91

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Solution

The fourth proportional to 15,487.08, 21,372.24 and 9,113.91 is: 12,577.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487.08 : 21,372.24 = 9,113.91 : x
  2. Step 2: Convert to fraction form
    15,487.08/21,372.24 = 9,113.91/x
  3. Step 3: Cross multiply
    15,487.08x = 21,372.24 × 9,113.91
  4. Step 4: Simplify right side
    15,487.08x = 194,784,671.86
  5. Step 5: Solve for x
    x = 194,784,671.86/15,487.08
  6. Step 6: Final answer
    x = 12,577.24

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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.