Home / 18,862.20-26,028.63-11,309.13

Finding the Fourth Proportional to 18,862.20, 26,028.63 and 11,309.13

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Solution

The fourth proportional to 18,862.20, 26,028.63 and 11,309.13 is: 15,605.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862.20 : 26,028.63 = 11,309.13 : x
  2. Step 2: Convert to fraction form
    18,862.20/26,028.63 = 11,309.13/x
  3. Step 3: Cross multiply
    18,862.20x = 26,028.63 × 11,309.13
  4. Step 4: Simplify right side
    18,862.20x = 294,361,160.39
  5. Step 5: Solve for x
    x = 294,361,160.39/18,862.20
  6. Step 6: Final answer
    x = 15,605.88

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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.