Home / 10,117.40-15,176.19-3,543.57

Finding the Fourth Proportional to 10,117.40, 15,176.19 and 3,543.57

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Solution

The fourth proportional to 10,117.40, 15,176.19 and 3,543.57 is: 5,315.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.40 : 15,176.19 = 3,543.57 : x
  2. Step 2: Convert to fraction form
    10,117.40/15,176.19 = 3,543.57/x
  3. Step 3: Cross multiply
    10,117.40x = 15,176.19 × 3,543.57
  4. Step 4: Simplify right side
    10,117.40x = 53,777,891.60
  5. Step 5: Solve for x
    x = 53,777,891.60/10,117.40
  6. Step 6: Final answer
    x = 5,315.39

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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.