Home / 13,080.24-18,060.90-8,046.78

Finding the Fourth Proportional to 13,080.24, 18,060.90 and 8,046.78

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Solution

The fourth proportional to 13,080.24, 18,060.90 and 8,046.78 is: 11,110.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.24 : 18,060.90 = 8,046.78 : x
  2. Step 2: Convert to fraction form
    13,080.24/18,060.90 = 8,046.78/x
  3. Step 3: Cross multiply
    13,080.24x = 18,060.90 × 8,046.78
  4. Step 4: Simplify right side
    13,080.24x = 145,332,088.90
  5. Step 5: Solve for x
    x = 145,332,088.90/13,080.24
  6. Step 6: Final answer
    x = 11,110.81

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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.