Home / 10,531.55-15,785.18-3,953.54

Finding the Fourth Proportional to 10,531.55, 15,785.18 and 3,953.54

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Solution

The fourth proportional to 10,531.55, 15,785.18 and 3,953.54 is: 5,925.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531.55 : 15,785.18 = 3,953.54 : x
  2. Step 2: Convert to fraction form
    10,531.55/15,785.18 = 3,953.54/x
  3. Step 3: Cross multiply
    10,531.55x = 15,785.18 × 3,953.54
  4. Step 4: Simplify right side
    10,531.55x = 62,407,375.06
  5. Step 5: Solve for x
    x = 62,407,375.06/10,531.55
  6. Step 6: Final answer
    x = 5,925.75

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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.