Home / 10,418.31-15,628.84-3,395.86

Finding the Fourth Proportional to 10,418.31, 15,628.84 and 3,395.86

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Solution

The fourth proportional to 10,418.31, 15,628.84 and 3,395.86 is: 5,094.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.31 : 15,628.84 = 3,395.86 : x
  2. Step 2: Convert to fraction form
    10,418.31/15,628.84 = 3,395.86/x
  3. Step 3: Cross multiply
    10,418.31x = 15,628.84 × 3,395.86
  4. Step 4: Simplify right side
    10,418.31x = 53,073,366.20
  5. Step 5: Solve for x
    x = 53,073,366.20/10,418.31
  6. Step 6: Final answer
    x = 5,094.24

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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.