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Finding the Fourth Proportional to 8,253.56, 12,381.54 and 2,988.97

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Solution

The fourth proportional to 8,253.56, 12,381.54 and 2,988.97 is: 4,483.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.56 : 12,381.54 = 2,988.97 : x
  2. Step 2: Convert to fraction form
    8,253.56/12,381.54 = 2,988.97/x
  3. Step 3: Cross multiply
    8,253.56x = 12,381.54 × 2,988.97
  4. Step 4: Simplify right side
    8,253.56x = 37,008,051.61
  5. Step 5: Solve for x
    x = 37,008,051.61/8,253.56
  6. Step 6: Final answer
    x = 4,483.89

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1.5x scale

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.