Home / 10,512.41-15,778.46-5,321.93

Finding the Fourth Proportional to 10,512.41, 15,778.46 and 5,321.93

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Solution

The fourth proportional to 10,512.41, 15,778.46 and 5,321.93 is: 7,987.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.41 : 15,778.46 = 5,321.93 : x
  2. Step 2: Convert to fraction form
    10,512.41/15,778.46 = 5,321.93/x
  3. Step 3: Cross multiply
    10,512.41x = 15,778.46 × 5,321.93
  4. Step 4: Simplify right side
    10,512.41x = 83,971,833.02
  5. Step 5: Solve for x
    x = 83,971,833.02/10,512.41
  6. Step 6: Final answer
    x = 7,987.88

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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.