Home / 12,708.45-17,537.36-7,402.92

Finding the Fourth Proportional to 12,708.45, 17,537.36 and 7,402.92

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Solution

The fourth proportional to 12,708.45, 17,537.36 and 7,402.92 is: 10,215.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,708.45 : 17,537.36 = 7,402.92 : x
  2. Step 2: Convert to fraction form
    12,708.45/17,537.36 = 7,402.92/x
  3. Step 3: Cross multiply
    12,708.45x = 17,537.36 × 7,402.92
  4. Step 4: Simplify right side
    12,708.45x = 129,827,614.15
  5. Step 5: Solve for x
    x = 129,827,614.15/12,708.45
  6. Step 6: Final answer
    x = 10,215.85

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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.