Home / 10,378.82-15,566.56-2,981.60

Finding the Fourth Proportional to 10,378.82, 15,566.56 and 2,981.60

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Solution

The fourth proportional to 10,378.82, 15,566.56 and 2,981.60 is: 4,471.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.82 : 15,566.56 = 2,981.60 : x
  2. Step 2: Convert to fraction form
    10,378.82/15,566.56 = 2,981.60/x
  3. Step 3: Cross multiply
    10,378.82x = 15,566.56 × 2,981.60
  4. Step 4: Simplify right side
    10,378.82x = 46,413,286.76
  5. Step 5: Solve for x
    x = 46,413,286.76/10,378.82
  6. Step 6: Final answer
    x = 4,471.92

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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.