Home / 10,145.28-15,179.64-5,987.55

Finding the Fourth Proportional to 10,145.28, 15,179.64 and 5,987.55

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Solution

The fourth proportional to 10,145.28, 15,179.64 and 5,987.55 is: 8,958.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.28 : 15,179.64 = 5,987.55 : x
  2. Step 2: Convert to fraction form
    10,145.28/15,179.64 = 5,987.55/x
  3. Step 3: Cross multiply
    10,145.28x = 15,179.64 × 5,987.55
  4. Step 4: Simplify right side
    10,145.28x = 90,888,853.48
  5. Step 5: Solve for x
    x = 90,888,853.48/10,145.28
  6. Step 6: Final answer
    x = 8,958.73

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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.