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Finding the Fourth Proportional to 8,063.10, 11,127.78 and 4,478.40

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Solution

The fourth proportional to 8,063.10, 11,127.78 and 4,478.40 is: 6,180.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,063.10 : 11,127.78 = 4,478.40 : x
  2. Step 2: Convert to fraction form
    8,063.10/11,127.78 = 4,478.40/x
  3. Step 3: Cross multiply
    8,063.10x = 11,127.78 × 4,478.40
  4. Step 4: Simplify right side
    8,063.10x = 49,834,649.95
  5. Step 5: Solve for x
    x = 49,834,649.95/8,063.10
  6. Step 6: Final answer
    x = 6,180.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.