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Finding the Fourth Proportional to 8,854.40, 12,181.28 and 8,608.34

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Solution

The fourth proportional to 8,854.40, 12,181.28 and 8,608.34 is: 11,842.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.40 : 12,181.28 = 8,608.34 : x
  2. Step 2: Convert to fraction form
    8,854.40/12,181.28 = 8,608.34/x
  3. Step 3: Cross multiply
    8,854.40x = 12,181.28 × 8,608.34
  4. Step 4: Simplify right side
    8,854.40x = 104,860,599.88
  5. Step 5: Solve for x
    x = 104,860,599.88/8,854.40
  6. Step 6: Final answer
    x = 11,842.77

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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.