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Finding the Fourth Proportional to 8,666.51, 13,004.63 and 3,472.79

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Solution

The fourth proportional to 8,666.51, 13,004.63 and 3,472.79 is: 5,211.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.51 : 13,004.63 = 3,472.79 : x
  2. Step 2: Convert to fraction form
    8,666.51/13,004.63 = 3,472.79/x
  3. Step 3: Cross multiply
    8,666.51x = 13,004.63 × 3,472.79
  4. Step 4: Simplify right side
    8,666.51x = 45,162,331.65
  5. Step 5: Solve for x
    x = 45,162,331.65/8,666.51
  6. Step 6: Final answer
    x = 5,211.13

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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.