Home / 12,437.52-17,165.42-7,131.30

Finding the Fourth Proportional to 12,437.52, 17,165.42 and 7,131.30

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Solution

The fourth proportional to 12,437.52, 17,165.42 and 7,131.30 is: 9,842.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.52 : 17,165.42 = 7,131.30 : x
  2. Step 2: Convert to fraction form
    12,437.52/17,165.42 = 7,131.30/x
  3. Step 3: Cross multiply
    12,437.52x = 17,165.42 × 7,131.30
  4. Step 4: Simplify right side
    12,437.52x = 122,411,723.99
  5. Step 5: Solve for x
    x = 122,411,723.99/12,437.52
  6. Step 6: Final answer
    x = 9,842.13

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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.