Home / 12,538.28-17,302.16-7,232.78

Finding the Fourth Proportional to 12,538.28, 17,302.16 and 7,232.78

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Solution

The fourth proportional to 12,538.28, 17,302.16 and 7,232.78 is: 9,980.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,538.28 : 17,302.16 = 7,232.78 : x
  2. Step 2: Convert to fraction form
    12,538.28/17,302.16 = 7,232.78/x
  3. Step 3: Cross multiply
    12,538.28x = 17,302.16 × 7,232.78
  4. Step 4: Simplify right side
    12,538.28x = 125,142,716.80
  5. Step 5: Solve for x
    x = 125,142,716.80/12,538.28
  6. Step 6: Final answer
    x = 9,980.85

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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.