Home / 13,372.72-20,037.16-9,470.12

Finding the Fourth Proportional to 13,372.72, 20,037.16 and 9,470.12

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Solution

The fourth proportional to 13,372.72, 20,037.16 and 9,470.12 is: 14,189.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.72 : 20,037.16 = 9,470.12 : x
  2. Step 2: Convert to fraction form
    13,372.72/20,037.16 = 9,470.12/x
  3. Step 3: Cross multiply
    13,372.72x = 20,037.16 × 9,470.12
  4. Step 4: Simplify right side
    13,372.72x = 189,754,309.66
  5. Step 5: Solve for x
    x = 189,754,309.66/13,372.72
  6. Step 6: Final answer
    x = 14,189.66

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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.