Home / 10,278.86-15,419.37-3,354.62

Finding the Fourth Proportional to 10,278.86, 15,419.37 and 3,354.62

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Solution

The fourth proportional to 10,278.86, 15,419.37 and 3,354.62 is: 5,032.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.86 : 15,419.37 = 3,354.62 : x
  2. Step 2: Convert to fraction form
    10,278.86/15,419.37 = 3,354.62/x
  3. Step 3: Cross multiply
    10,278.86x = 15,419.37 × 3,354.62
  4. Step 4: Simplify right side
    10,278.86x = 51,726,126.99
  5. Step 5: Solve for x
    x = 51,726,126.99/10,278.86
  6. Step 6: Final answer
    x = 5,032.28

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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.