Home / 10,149.28-15,185.64-5,991.55

Finding the Fourth Proportional to 10,149.28, 15,185.64 and 5,991.55

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Solution

The fourth proportional to 10,149.28, 15,185.64 and 5,991.55 is: 8,964.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,149.28 : 15,185.64 = 5,991.55 : x
  2. Step 2: Convert to fraction form
    10,149.28/15,185.64 = 5,991.55/x
  3. Step 3: Cross multiply
    10,149.28x = 15,185.64 × 5,991.55
  4. Step 4: Simplify right side
    10,149.28x = 90,985,521.34
  5. Step 5: Solve for x
    x = 90,985,521.34/10,149.28
  6. Step 6: Final answer
    x = 8,964.73

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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.