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Finding the Fourth Proportional to 8,718.84, 13,060.04 and 6,500.86

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Solution

The fourth proportional to 8,718.84, 13,060.04 and 6,500.86 is: 9,737.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.84 : 13,060.04 = 6,500.86 : x
  2. Step 2: Convert to fraction form
    8,718.84/13,060.04 = 6,500.86/x
  3. Step 3: Cross multiply
    8,718.84x = 13,060.04 × 6,500.86
  4. Step 4: Simplify right side
    8,718.84x = 84,901,426.48
  5. Step 5: Solve for x
    x = 84,901,426.48/8,718.84
  6. Step 6: Final answer
    x = 9,737.70

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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.