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Finding the Fourth Proportional to 28,713.76, 43,073.10 and 7,937.26

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Solution

The fourth proportional to 28,713.76, 43,073.10 and 7,937.26 is: 11,906.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,713.76 : 43,073.10 = 7,937.26 : x
  2. Step 2: Convert to fraction form
    28,713.76/43,073.10 = 7,937.26/x
  3. Step 3: Cross multiply
    28,713.76x = 43,073.10 × 7,937.26
  4. Step 4: Simplify right side
    28,713.76x = 341,882,393.71
  5. Step 5: Solve for x
    x = 341,882,393.71/28,713.76
  6. Step 6: Final answer
    x = 11,906.57

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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.