Home / 10,434.18-15,642.36-3,859.14

Finding the Fourth Proportional to 10,434.18, 15,642.36 and 3,859.14

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Solution

The fourth proportional to 10,434.18, 15,642.36 and 3,859.14 is: 5,785.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,434.18 : 15,642.36 = 3,859.14 : x
  2. Step 2: Convert to fraction form
    10,434.18/15,642.36 = 3,859.14/x
  3. Step 3: Cross multiply
    10,434.18x = 15,642.36 × 3,859.14
  4. Step 4: Simplify right side
    10,434.18x = 60,366,057.17
  5. Step 5: Solve for x
    x = 60,366,057.17/10,434.18
  6. Step 6: Final answer
    x = 5,785.41

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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.