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Finding the Fourth Proportional to 8,881.65, 13,324.23 and 7,430.94

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Solution

The fourth proportional to 8,881.65, 13,324.23 and 7,430.94 is: 11,147.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.65 : 13,324.23 = 7,430.94 : x
  2. Step 2: Convert to fraction form
    8,881.65/13,324.23 = 7,430.94/x
  3. Step 3: Cross multiply
    8,881.65x = 13,324.23 × 7,430.94
  4. Step 4: Simplify right side
    8,881.65x = 99,011,553.68
  5. Step 5: Solve for x
    x = 99,011,553.68/8,881.65
  6. Step 6: Final answer
    x = 11,147.88

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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.