Home / 11,938.19-16,476.13-7,160.76

Finding the Fourth Proportional to 11,938.19, 16,476.13 and 7,160.76

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Solution

The fourth proportional to 11,938.19, 16,476.13 and 7,160.76 is: 9,882.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.19 : 16,476.13 = 7,160.76 : x
  2. Step 2: Convert to fraction form
    11,938.19/16,476.13 = 7,160.76/x
  3. Step 3: Cross multiply
    11,938.19x = 16,476.13 × 7,160.76
  4. Step 4: Simplify right side
    11,938.19x = 117,981,627.67
  5. Step 5: Solve for x
    x = 117,981,627.67/11,938.19
  6. Step 6: Final answer
    x = 9,882.71

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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.