Home / 13,079.90-18,047.25-8,838.87

Finding the Fourth Proportional to 13,079.90, 18,047.25 and 8,838.87

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Solution

The fourth proportional to 13,079.90, 18,047.25 and 8,838.87 is: 12,195.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.90 : 18,047.25 = 8,838.87 : x
  2. Step 2: Convert to fraction form
    13,079.90/18,047.25 = 8,838.87/x
  3. Step 3: Cross multiply
    13,079.90x = 18,047.25 × 8,838.87
  4. Step 4: Simplify right side
    13,079.90x = 159,517,296.61
  5. Step 5: Solve for x
    x = 159,517,296.61/13,079.90
  6. Step 6: Final answer
    x = 12,195.61

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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.