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Finding the Fourth Proportional to 7,877.53, 10,869.28 and 5,988.61

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Solution

The fourth proportional to 7,877.53, 10,869.28 and 5,988.61 is: 8,262.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.53 : 10,869.28 = 5,988.61 : x
  2. Step 2: Convert to fraction form
    7,877.53/10,869.28 = 5,988.61/x
  3. Step 3: Cross multiply
    7,877.53x = 10,869.28 × 5,988.61
  4. Step 4: Simplify right side
    7,877.53x = 65,091,878.90
  5. Step 5: Solve for x
    x = 65,091,878.90/7,877.53
  6. Step 6: Final answer
    x = 8,262.98

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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.