Home / 18,862.20-26,039.07-11,790.90

Finding the Fourth Proportional to 18,862.20, 26,039.07 and 11,790.90

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Solution

The fourth proportional to 18,862.20, 26,039.07 and 11,790.90 is: 16,277.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862.20 : 26,039.07 = 11,790.90 : x
  2. Step 2: Convert to fraction form
    18,862.20/26,039.07 = 11,790.90/x
  3. Step 3: Cross multiply
    18,862.20x = 26,039.07 × 11,790.90
  4. Step 4: Simplify right side
    18,862.20x = 307,024,070.46
  5. Step 5: Solve for x
    x = 307,024,070.46/18,862.20
  6. Step 6: Final answer
    x = 16,277.21

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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.