Home / 12,331.37-17,020.50-7,612.92

Finding the Fourth Proportional to 12,331.37, 17,020.50 and 7,612.92

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Solution

The fourth proportional to 12,331.37, 17,020.50 and 7,612.92 is: 10,507.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.37 : 17,020.50 = 7,612.92 : x
  2. Step 2: Convert to fraction form
    12,331.37/17,020.50 = 7,612.92/x
  3. Step 3: Cross multiply
    12,331.37x = 17,020.50 × 7,612.92
  4. Step 4: Simplify right side
    12,331.37x = 129,575,704.86
  5. Step 5: Solve for x
    x = 129,575,704.86/12,331.37
  6. Step 6: Final answer
    x = 10,507.81

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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.