Home / 10,281.20-15,422.88-3,354.08

Finding the Fourth Proportional to 10,281.20, 15,422.88 and 3,354.08

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Solution

The fourth proportional to 10,281.20, 15,422.88 and 3,354.08 is: 5,031.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.20 : 15,422.88 = 3,354.08 : x
  2. Step 2: Convert to fraction form
    10,281.20/15,422.88 = 3,354.08/x
  3. Step 3: Cross multiply
    10,281.20x = 15,422.88 × 3,354.08
  4. Step 4: Simplify right side
    10,281.20x = 51,729,573.35
  5. Step 5: Solve for x
    x = 51,729,573.35/10,281.20
  6. Step 6: Final answer
    x = 5,031.47

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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.