Home / 10,080.90-15,121.35-3,507.08

Finding the Fourth Proportional to 10,080.90, 15,121.35 and 3,507.08

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Solution

The fourth proportional to 10,080.90, 15,121.35 and 3,507.08 is: 5,260.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080.90 : 15,121.35 = 3,507.08 : x
  2. Step 2: Convert to fraction form
    10,080.90/15,121.35 = 3,507.08/x
  3. Step 3: Cross multiply
    10,080.90x = 15,121.35 × 3,507.08
  4. Step 4: Simplify right side
    10,080.90x = 53,031,708.55
  5. Step 5: Solve for x
    x = 53,031,708.55/10,080.90
  6. Step 6: Final answer
    x = 5,260.61

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Double scale
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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.