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Finding the Fourth Proportional to 11,377.26, 15,706.71 and 7,984.71

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Solution

The fourth proportional to 11,377.26, 15,706.71 and 7,984.71 is: 11,023.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,377.26 : 15,706.71 = 7,984.71 : x
  2. Step 2: Convert to fraction form
    11,377.26/15,706.71 = 7,984.71/x
  3. Step 3: Cross multiply
    11,377.26x = 15,706.71 × 7,984.71
  4. Step 4: Simplify right side
    11,377.26x = 125,413,524.40
  5. Step 5: Solve for x
    x = 125,413,524.40/11,377.26
  6. Step 6: Final answer
    x = 11,023.17

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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.