Home / 12,231.87-16,878.33-7,193.18

Finding the Fourth Proportional to 12,231.87, 16,878.33 and 7,193.18

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Solution

The fourth proportional to 12,231.87, 16,878.33 and 7,193.18 is: 9,925.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.87 : 16,878.33 = 7,193.18 : x
  2. Step 2: Convert to fraction form
    12,231.87/16,878.33 = 7,193.18/x
  3. Step 3: Cross multiply
    12,231.87x = 16,878.33 × 7,193.18
  4. Step 4: Simplify right side
    12,231.87x = 121,408,781.40
  5. Step 5: Solve for x
    x = 121,408,781.40/12,231.87
  6. Step 6: Final answer
    x = 9,925.61

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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.