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Finding the Fourth Proportional to 8,308.85, 11,442.89 and 8,127.41

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Solution

The fourth proportional to 8,308.85, 11,442.89 and 8,127.41 is: 11,193.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,308.85 : 11,442.89 = 8,127.41 : x
  2. Step 2: Convert to fraction form
    8,308.85/11,442.89 = 8,127.41/x
  3. Step 3: Cross multiply
    8,308.85x = 11,442.89 × 8,127.41
  4. Step 4: Simplify right side
    8,308.85x = 93,001,017.98
  5. Step 5: Solve for x
    x = 93,001,017.98/8,308.85
  6. Step 6: Final answer
    x = 11,193.01

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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.