Home / 9,385.40-14,080.34-3,145.43

Finding the Fourth Proportional to 9,385.40, 14,080.34 and 3,145.43

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Solution

The fourth proportional to 9,385.40, 14,080.34 and 3,145.43 is: 4,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,385.40 : 14,080.34 = 3,145.43 : x
  2. Step 2: Convert to fraction form
    9,385.40/14,080.34 = 3,145.43/x
  3. Step 3: Cross multiply
    9,385.40x = 14,080.34 × 3,145.43
  4. Step 4: Simplify right side
    9,385.40x = 44,288,766.91
  5. Step 5: Solve for x
    x = 44,288,766.91/9,385.40
  6. Step 6: Final answer
    x = 4,718.90

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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.