Home / 12,635.81-17,432.03-9,272.78

Finding the Fourth Proportional to 12,635.81, 17,432.03 and 9,272.78

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Solution

The fourth proportional to 12,635.81, 17,432.03 and 9,272.78 is: 12,792.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635.81 : 17,432.03 = 9,272.78 : x
  2. Step 2: Convert to fraction form
    12,635.81/17,432.03 = 9,272.78/x
  3. Step 3: Cross multiply
    12,635.81x = 17,432.03 × 9,272.78
  4. Step 4: Simplify right side
    12,635.81x = 161,643,245.62
  5. Step 5: Solve for x
    x = 161,643,245.62/12,635.81
  6. Step 6: Final answer
    x = 12,792.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.