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Finding the Fourth Proportional to 8,472.03, 12,710.88 and 4,088.99

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Solution

The fourth proportional to 8,472.03, 12,710.88 and 4,088.99 is: 6,134.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.03 : 12,710.88 = 4,088.99 : x
  2. Step 2: Convert to fraction form
    8,472.03/12,710.88 = 4,088.99/x
  3. Step 3: Cross multiply
    8,472.03x = 12,710.88 × 4,088.99
  4. Step 4: Simplify right side
    8,472.03x = 51,974,597.66
  5. Step 5: Solve for x
    x = 51,974,597.66/8,472.03
  6. Step 6: Final answer
    x = 6,134.85

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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.