Home / 10,354.20-15,531.30-5,433.45

Finding the Fourth Proportional to 10,354.20, 15,531.30 and 5,433.45

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Solution

The fourth proportional to 10,354.20, 15,531.30 and 5,433.45 is: 8,150.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.20 : 15,531.30 = 5,433.45 : x
  2. Step 2: Convert to fraction form
    10,354.20/15,531.30 = 5,433.45/x
  3. Step 3: Cross multiply
    10,354.20x = 15,531.30 × 5,433.45
  4. Step 4: Simplify right side
    10,354.20x = 84,388,541.99
  5. Step 5: Solve for x
    x = 84,388,541.99/10,354.20
  6. Step 6: Final answer
    x = 8,150.18

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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.