Home / 10,221.41-15,340.32-5,292.47

Finding the Fourth Proportional to 10,221.41, 15,340.32 and 5,292.47

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Solution

The fourth proportional to 10,221.41, 15,340.32 and 5,292.47 is: 7,942.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.41 : 15,340.32 = 5,292.47 : x
  2. Step 2: Convert to fraction form
    10,221.41/15,340.32 = 5,292.47/x
  3. Step 3: Cross multiply
    10,221.41x = 15,340.32 × 5,292.47
  4. Step 4: Simplify right side
    10,221.41x = 81,188,221.74
  5. Step 5: Solve for x
    x = 81,188,221.74/10,221.41
  6. Step 6: Final answer
    x = 7,942.96

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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.