Home / 11,155.29-16,712.25-7,986.19

Finding the Fourth Proportional to 11,155.29, 16,712.25 and 7,986.19

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Solution

The fourth proportional to 11,155.29, 16,712.25 and 7,986.19 is: 11,964.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.29 : 16,712.25 = 7,986.19 : x
  2. Step 2: Convert to fraction form
    11,155.29/16,712.25 = 7,986.19/x
  3. Step 3: Cross multiply
    11,155.29x = 16,712.25 × 7,986.19
  4. Step 4: Simplify right side
    11,155.29x = 133,467,203.83
  5. Step 5: Solve for x
    x = 133,467,203.83/11,155.29
  6. Step 6: Final answer
    x = 11,964.48

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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.