Home / 10,198.71-15,265.23-5,261.55

Finding the Fourth Proportional to 10,198.71, 15,265.23 and 5,261.55

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Solution

The fourth proportional to 10,198.71, 15,265.23 and 5,261.55 is: 7,875.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.71 : 15,265.23 = 5,261.55 : x
  2. Step 2: Convert to fraction form
    10,198.71/15,265.23 = 5,261.55/x
  3. Step 3: Cross multiply
    10,198.71x = 15,265.23 × 5,261.55
  4. Step 4: Simplify right side
    10,198.71x = 80,318,770.91
  5. Step 5: Solve for x
    x = 80,318,770.91/10,198.71
  6. Step 6: Final answer
    x = 7,875.39

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1.5x scale

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.