Home / 10,638.84-15,956.32-5,372.61

Finding the Fourth Proportional to 10,638.84, 15,956.32 and 5,372.61

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Solution

The fourth proportional to 10,638.84, 15,956.32 and 5,372.61 is: 8,057.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.84 : 15,956.32 = 5,372.61 : x
  2. Step 2: Convert to fraction form
    10,638.84/15,956.32 = 5,372.61/x
  3. Step 3: Cross multiply
    10,638.84x = 15,956.32 × 5,372.61
  4. Step 4: Simplify right side
    10,638.84x = 85,727,084.40
  5. Step 5: Solve for x
    x = 85,727,084.40/10,638.84
  6. Step 6: Final answer
    x = 8,057.94

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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.