Home / 10,691.82-16,016.13-8,954.19

Finding the Fourth Proportional to 10,691.82, 16,016.13 and 8,954.19

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Solution

The fourth proportional to 10,691.82, 16,016.13 and 8,954.19 is: 13,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,691.82 : 16,016.13 = 8,954.19 : x
  2. Step 2: Convert to fraction form
    10,691.82/16,016.13 = 8,954.19/x
  3. Step 3: Cross multiply
    10,691.82x = 16,016.13 × 8,954.19
  4. Step 4: Simplify right side
    10,691.82x = 143,411,471.08
  5. Step 5: Solve for x
    x = 143,411,471.08/10,691.82
  6. Step 6: Final answer
    x = 13,413.20

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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.