Home / 10,147.14-15,220.71-6,659.22

Finding the Fourth Proportional to 10,147.14, 15,220.71 and 6,659.22

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Solution

The fourth proportional to 10,147.14, 15,220.71 and 6,659.22 is: 9,988.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.14 : 15,220.71 = 6,659.22 : x
  2. Step 2: Convert to fraction form
    10,147.14/15,220.71 = 6,659.22/x
  3. Step 3: Cross multiply
    10,147.14x = 15,220.71 × 6,659.22
  4. Step 4: Simplify right side
    10,147.14x = 101,358,056.45
  5. Step 5: Solve for x
    x = 101,358,056.45/10,147.14
  6. Step 6: Final answer
    x = 9,988.83

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Similar ratio
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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.