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Finding the Fourth Proportional to 8,487.31, 11,710.09 and 5,503.27

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Solution

The fourth proportional to 8,487.31, 11,710.09 and 5,503.27 is: 7,592.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.31 : 11,710.09 = 5,503.27 : x
  2. Step 2: Convert to fraction form
    8,487.31/11,710.09 = 5,503.27/x
  3. Step 3: Cross multiply
    8,487.31x = 11,710.09 × 5,503.27
  4. Step 4: Simplify right side
    8,487.31x = 64,443,786.99
  5. Step 5: Solve for x
    x = 64,443,786.99/8,487.31
  6. Step 6: Final answer
    x = 7,592.96

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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.