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Finding the Fourth Proportional to 8,343.91, 12,505.47 and 7,301.44

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Solution

The fourth proportional to 8,343.91, 12,505.47 and 7,301.44 is: 10,943.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.91 : 12,505.47 = 7,301.44 : x
  2. Step 2: Convert to fraction form
    8,343.91/12,505.47 = 7,301.44/x
  3. Step 3: Cross multiply
    8,343.91x = 12,505.47 × 7,301.44
  4. Step 4: Simplify right side
    8,343.91x = 91,307,938.88
  5. Step 5: Solve for x
    x = 91,307,938.88/8,343.91
  6. Step 6: Final answer
    x = 10,943.06

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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.