Home / 11,518.49-15,904.67-7,744.97

Finding the Fourth Proportional to 11,518.49, 15,904.67 and 7,744.97

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Solution

The fourth proportional to 11,518.49, 15,904.67 and 7,744.97 is: 10,694.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.49 : 15,904.67 = 7,744.97 : x
  2. Step 2: Convert to fraction form
    11,518.49/15,904.67 = 7,744.97/x
  3. Step 3: Cross multiply
    11,518.49x = 15,904.67 × 7,744.97
  4. Step 4: Simplify right side
    11,518.49x = 123,181,073.76
  5. Step 5: Solve for x
    x = 123,181,073.76/11,518.49
  6. Step 6: Final answer
    x = 10,694.21

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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.