Home / 25,126.49-37,689.89-8,486.61

Finding the Fourth Proportional to 25,126.49, 37,689.89 and 8,486.61

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Solution

The fourth proportional to 25,126.49, 37,689.89 and 8,486.61 is: 12,729.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,126.49 : 37,689.89 = 8,486.61 : x
  2. Step 2: Convert to fraction form
    25,126.49/37,689.89 = 8,486.61/x
  3. Step 3: Cross multiply
    25,126.49x = 37,689.89 × 8,486.61
  4. Step 4: Simplify right side
    25,126.49x = 319,859,397.37
  5. Step 5: Solve for x
    x = 319,859,397.37/25,126.49
  6. Step 6: Final answer
    x = 12,729.97

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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.