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Finding the Fourth Proportional to 8,487.72, 11,713.14 and 4,710.96

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Solution

The fourth proportional to 8,487.72, 11,713.14 and 4,710.96 is: 6,501.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.72 : 11,713.14 = 4,710.96 : x
  2. Step 2: Convert to fraction form
    8,487.72/11,713.14 = 4,710.96/x
  3. Step 3: Cross multiply
    8,487.72x = 11,713.14 × 4,710.96
  4. Step 4: Simplify right side
    8,487.72x = 55,180,134.01
  5. Step 5: Solve for x
    x = 55,180,134.01/8,487.72
  6. Step 6: Final answer
    x = 6,501.17

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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.