Home / 10,540.49-15,810.20-3,145.01

Finding the Fourth Proportional to 10,540.49, 15,810.20 and 3,145.01

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Solution

The fourth proportional to 10,540.49, 15,810.20 and 3,145.01 is: 4,717.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,540.49 : 15,810.20 = 3,145.01 : x
  2. Step 2: Convert to fraction form
    10,540.49/15,810.20 = 3,145.01/x
  3. Step 3: Cross multiply
    10,540.49x = 15,810.20 × 3,145.01
  4. Step 4: Simplify right side
    10,540.49x = 49,723,221.38
  5. Step 5: Solve for x
    x = 49,723,221.38/10,540.49
  6. Step 6: Final answer
    x = 4,717.35

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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.