Home / 8,778.39-12,114.21-5,241.53

Finding the Fourth Proportional to 8,778.39, 12,114.21 and 5,241.53

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Solution

The fourth proportional to 8,778.39, 12,114.21 and 5,241.53 is: 7,233.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.39 : 12,114.21 = 5,241.53 : x
  2. Step 2: Convert to fraction form
    8,778.39/12,114.21 = 5,241.53/x
  3. Step 3: Cross multiply
    8,778.39x = 12,114.21 × 5,241.53
  4. Step 4: Simplify right side
    8,778.39x = 63,496,934.57
  5. Step 5: Solve for x
    x = 63,496,934.57/8,778.39
  6. Step 6: Final answer
    x = 7,233.32

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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.