Home / 15,080.55-22,620.39-3,987.33

Finding the Fourth Proportional to 15,080.55, 22,620.39 and 3,987.33

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Solution

The fourth proportional to 15,080.55, 22,620.39 and 3,987.33 is: 5,980.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,080.55 : 22,620.39 = 3,987.33 : x
  2. Step 2: Convert to fraction form
    15,080.55/22,620.39 = 3,987.33/x
  3. Step 3: Cross multiply
    15,080.55x = 22,620.39 × 3,987.33
  4. Step 4: Simplify right side
    15,080.55x = 90,194,959.66
  5. Step 5: Solve for x
    x = 90,194,959.66/15,080.55
  6. Step 6: Final answer
    x = 5,980.88

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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.