Home / 18,927.60-26,120.68-10,862.73

Finding the Fourth Proportional to 18,927.60, 26,120.68 and 10,862.73

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Solution

The fourth proportional to 18,927.60, 26,120.68 and 10,862.73 is: 14,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927.60 : 26,120.68 = 10,862.73 : x
  2. Step 2: Convert to fraction form
    18,927.60/26,120.68 = 10,862.73/x
  3. Step 3: Cross multiply
    18,927.60x = 26,120.68 × 10,862.73
  4. Step 4: Simplify right side
    18,927.60x = 283,741,921.41
  5. Step 5: Solve for x
    x = 283,741,921.41/18,927.60
  6. Step 6: Final answer
    x = 14,990.91

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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.