Home / 10,282.68-15,432.66-8,243.64

Finding the Fourth Proportional to 10,282.68, 15,432.66 and 8,243.64

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Solution

The fourth proportional to 10,282.68, 15,432.66 and 8,243.64 is: 12,372.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,282.68 : 15,432.66 = 8,243.64 : x
  2. Step 2: Convert to fraction form
    10,282.68/15,432.66 = 8,243.64/x
  3. Step 3: Cross multiply
    10,282.68x = 15,432.66 × 8,243.64
  4. Step 4: Simplify right side
    10,282.68x = 127,221,293.28
  5. Step 5: Solve for x
    x = 127,221,293.28/10,282.68
  6. Step 6: Final answer
    x = 12,372.39

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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.