Home / 11,112.75-16,654.77-8,317.53

Finding the Fourth Proportional to 11,112.75, 16,654.77 and 8,317.53

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Solution

The fourth proportional to 11,112.75, 16,654.77 and 8,317.53 is: 12,465.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.75 : 16,654.77 = 8,317.53 : x
  2. Step 2: Convert to fraction form
    11,112.75/16,654.77 = 8,317.53/x
  3. Step 3: Cross multiply
    11,112.75x = 16,654.77 × 8,317.53
  4. Step 4: Simplify right side
    11,112.75x = 138,526,549.12
  5. Step 5: Solve for x
    x = 138,526,549.12/11,112.75
  6. Step 6: Final answer
    x = 12,465.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.