Home / 12,505.32-18,744.48-8,125.92

Finding the Fourth Proportional to 12,505.32, 18,744.48 and 8,125.92

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Solution

The fourth proportional to 12,505.32, 18,744.48 and 8,125.92 is: 12,180.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.32 : 18,744.48 = 8,125.92 : x
  2. Step 2: Convert to fraction form
    12,505.32/18,744.48 = 8,125.92/x
  3. Step 3: Cross multiply
    12,505.32x = 18,744.48 × 8,125.92
  4. Step 4: Simplify right side
    12,505.32x = 152,316,144.92
  5. Step 5: Solve for x
    x = 152,316,144.92/12,505.32
  6. Step 6: Final answer
    x = 12,180.11

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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.