Home / 26,615.40-39,916.28-7,891.06

Finding the Fourth Proportional to 26,615.40, 39,916.28 and 7,891.06

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Solution

The fourth proportional to 26,615.40, 39,916.28 and 7,891.06 is: 11,834.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,615.40 : 39,916.28 = 7,891.06 : x
  2. Step 2: Convert to fraction form
    26,615.40/39,916.28 = 7,891.06/x
  3. Step 3: Cross multiply
    26,615.40x = 39,916.28 × 7,891.06
  4. Step 4: Simplify right side
    26,615.40x = 314,981,760.46
  5. Step 5: Solve for x
    x = 314,981,760.46/26,615.40
  6. Step 6: Final answer
    x = 11,834.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.