Home / 11,074.38-15,278.82-7,097.70

Finding the Fourth Proportional to 11,074.38, 15,278.82 and 7,097.70

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Solution

The fourth proportional to 11,074.38, 15,278.82 and 7,097.70 is: 9,792.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,074.38 : 15,278.82 = 7,097.70 : x
  2. Step 2: Convert to fraction form
    11,074.38/15,278.82 = 7,097.70/x
  3. Step 3: Cross multiply
    11,074.38x = 15,278.82 × 7,097.70
  4. Step 4: Simplify right side
    11,074.38x = 108,444,480.71
  5. Step 5: Solve for x
    x = 108,444,480.71/11,074.38
  6. Step 6: Final answer
    x = 9,792.37

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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.