Home / 14,489.89-21,719.85-8,236.45

Finding the Fourth Proportional to 14,489.89, 21,719.85 and 8,236.45

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Solution

The fourth proportional to 14,489.89, 21,719.85 and 8,236.45 is: 12,346.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,489.89 : 21,719.85 = 8,236.45 : x
  2. Step 2: Convert to fraction form
    14,489.89/21,719.85 = 8,236.45/x
  3. Step 3: Cross multiply
    14,489.89x = 21,719.85 × 8,236.45
  4. Step 4: Simplify right side
    14,489.89x = 178,894,454.80
  5. Step 5: Solve for x
    x = 178,894,454.80/14,489.89
  6. Step 6: Final answer
    x = 12,346.16

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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.