Home / 11,422.62-15,761.66-6,386.58

Finding the Fourth Proportional to 11,422.62, 15,761.66 and 6,386.58

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Solution

The fourth proportional to 11,422.62, 15,761.66 and 6,386.58 is: 8,812.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,422.62 : 15,761.66 = 6,386.58 : x
  2. Step 2: Convert to fraction form
    11,422.62/15,761.66 = 6,386.58/x
  3. Step 3: Cross multiply
    11,422.62x = 15,761.66 × 6,386.58
  4. Step 4: Simplify right side
    11,422.62x = 100,663,070.59
  5. Step 5: Solve for x
    x = 100,663,070.59/11,422.62
  6. Step 6: Final answer
    x = 8,812.61

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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.