Home / 18,938.66-26,113.69-12,123.73

Finding the Fourth Proportional to 18,938.66, 26,113.69 and 12,123.73

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Solution

The fourth proportional to 18,938.66, 26,113.69 and 12,123.73 is: 16,716.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,938.66 : 26,113.69 = 12,123.73 : x
  2. Step 2: Convert to fraction form
    18,938.66/26,113.69 = 12,123.73/x
  3. Step 3: Cross multiply
    18,938.66x = 26,113.69 × 12,123.73
  4. Step 4: Simplify right side
    18,938.66x = 316,595,227.77
  5. Step 5: Solve for x
    x = 316,595,227.77/18,938.66
  6. Step 6: Final answer
    x = 16,716.88

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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.