Home / 10,861.28-14,989.30-6,081.68

Finding the Fourth Proportional to 10,861.28, 14,989.30 and 6,081.68

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Solution

The fourth proportional to 10,861.28, 14,989.30 and 6,081.68 is: 8,393.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.28 : 14,989.30 = 6,081.68 : x
  2. Step 2: Convert to fraction form
    10,861.28/14,989.30 = 6,081.68/x
  3. Step 3: Cross multiply
    10,861.28x = 14,989.30 × 6,081.68
  4. Step 4: Simplify right side
    10,861.28x = 91,160,126.02
  5. Step 5: Solve for x
    x = 91,160,126.02/10,861.28
  6. Step 6: Final answer
    x = 8,393.13

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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.