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Finding the Fourth Proportional to 8,341.44, 12,511.04 and 5,221.76

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Solution

The fourth proportional to 8,341.44, 12,511.04 and 5,221.76 is: 7,831.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,341.44 : 12,511.04 = 5,221.76 : x
  2. Step 2: Convert to fraction form
    8,341.44/12,511.04 = 5,221.76/x
  3. Step 3: Cross multiply
    8,341.44x = 12,511.04 × 5,221.76
  4. Step 4: Simplify right side
    8,341.44x = 65,329,648.23
  5. Step 5: Solve for x
    x = 65,329,648.23/8,341.44
  6. Step 6: Final answer
    x = 7,831.94

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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.