Home / 11,436.13-15,781.77-6,400.82

Finding the Fourth Proportional to 11,436.13, 15,781.77 and 6,400.82

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Solution

The fourth proportional to 11,436.13, 15,781.77 and 6,400.82 is: 8,833.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,436.13 : 15,781.77 = 6,400.82 : x
  2. Step 2: Convert to fraction form
    11,436.13/15,781.77 = 6,400.82/x
  3. Step 3: Cross multiply
    11,436.13x = 15,781.77 × 6,400.82
  4. Step 4: Simplify right side
    11,436.13x = 101,016,245.07
  5. Step 5: Solve for x
    x = 101,016,245.07/11,436.13
  6. Step 6: Final answer
    x = 8,833.08

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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.