Home / 18,938.28-26,134.82-10,440.54

Finding the Fourth Proportional to 18,938.28, 26,134.82 and 10,440.54

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Solution

The fourth proportional to 18,938.28, 26,134.82 and 10,440.54 is: 14,407.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,938.28 : 26,134.82 = 10,440.54 : x
  2. Step 2: Convert to fraction form
    18,938.28/26,134.82 = 10,440.54/x
  3. Step 3: Cross multiply
    18,938.28x = 26,134.82 × 10,440.54
  4. Step 4: Simplify right side
    18,938.28x = 272,861,633.60
  5. Step 5: Solve for x
    x = 272,861,633.60/18,938.28
  6. Step 6: Final answer
    x = 14,407.94

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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.