Home / 11,559.70-15,949.40-7,081.84

Finding the Fourth Proportional to 11,559.70, 15,949.40 and 7,081.84

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Solution

The fourth proportional to 11,559.70, 15,949.40 and 7,081.84 is: 9,771.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,559.70 : 15,949.40 = 7,081.84 : x
  2. Step 2: Convert to fraction form
    11,559.70/15,949.40 = 7,081.84/x
  3. Step 3: Cross multiply
    11,559.70x = 15,949.40 × 7,081.84
  4. Step 4: Simplify right side
    11,559.70x = 112,951,098.90
  5. Step 5: Solve for x
    x = 112,951,098.90/11,559.70
  6. Step 6: Final answer
    x = 9,771.11

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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.