Home / 8,609.82-11,888.56-7,016.70

Finding the Fourth Proportional to 8,609.82, 11,888.56 and 7,016.70

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Solution

The fourth proportional to 8,609.82, 11,888.56 and 7,016.70 is: 9,688.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.82 : 11,888.56 = 7,016.70 : x
  2. Step 2: Convert to fraction form
    8,609.82/11,888.56 = 7,016.70/x
  3. Step 3: Cross multiply
    8,609.82x = 11,888.56 × 7,016.70
  4. Step 4: Simplify right side
    8,609.82x = 83,418,458.95
  5. Step 5: Solve for x
    x = 83,418,458.95/8,609.82
  6. Step 6: Final answer
    x = 9,688.76

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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.