Home / 11,269.14-15,551.15-6,489.20

Finding the Fourth Proportional to 11,269.14, 15,551.15 and 6,489.20

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Solution

The fourth proportional to 11,269.14, 15,551.15 and 6,489.20 is: 8,954.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,269.14 : 15,551.15 = 6,489.20 : x
  2. Step 2: Convert to fraction form
    11,269.14/15,551.15 = 6,489.20/x
  3. Step 3: Cross multiply
    11,269.14x = 15,551.15 × 6,489.20
  4. Step 4: Simplify right side
    11,269.14x = 100,914,412.38
  5. Step 5: Solve for x
    x = 100,914,412.38/11,269.14
  6. Step 6: Final answer
    x = 8,954.93

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1.5x scale

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.