Home / 10,165.80-15,250.17-3,146.40

Finding the Fourth Proportional to 10,165.80, 15,250.17 and 3,146.40

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Solution

The fourth proportional to 10,165.80, 15,250.17 and 3,146.40 is: 4,720.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,165.80 : 15,250.17 = 3,146.40 : x
  2. Step 2: Convert to fraction form
    10,165.80/15,250.17 = 3,146.40/x
  3. Step 3: Cross multiply
    10,165.80x = 15,250.17 × 3,146.40
  4. Step 4: Simplify right side
    10,165.80x = 47,983,134.89
  5. Step 5: Solve for x
    x = 47,983,134.89/10,165.80
  6. Step 6: Final answer
    x = 4,720.05

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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.