Home / 10,358.78-15,538.36-3,433.46

Finding the Fourth Proportional to 10,358.78, 15,538.36 and 3,433.46

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Solution

The fourth proportional to 10,358.78, 15,538.36 and 3,433.46 is: 5,150.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,358.78 : 15,538.36 = 3,433.46 : x
  2. Step 2: Convert to fraction form
    10,358.78/15,538.36 = 3,433.46/x
  3. Step 3: Cross multiply
    10,358.78x = 15,538.36 × 3,433.46
  4. Step 4: Simplify right side
    10,358.78x = 53,350,337.53
  5. Step 5: Solve for x
    x = 53,350,337.53/10,358.78
  6. Step 6: Final answer
    x = 5,150.25

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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.