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Finding the Fourth Proportional to 8,878.80, 12,245.22 and 5,341.35

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Solution

The fourth proportional to 8,878.80, 12,245.22 and 5,341.35 is: 7,366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.80 : 12,245.22 = 5,341.35 : x
  2. Step 2: Convert to fraction form
    8,878.80/12,245.22 = 5,341.35/x
  3. Step 3: Cross multiply
    8,878.80x = 12,245.22 × 5,341.35
  4. Step 4: Simplify right side
    8,878.80x = 65,406,005.85
  5. Step 5: Solve for x
    x = 65,406,005.85/8,878.80
  6. Step 6: Final answer
    x = 7,366.54

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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.