Home / 11,112.93-15,314.61-7,963.65

Finding the Fourth Proportional to 11,112.93, 15,314.61 and 7,963.65

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Solution

The fourth proportional to 11,112.93, 15,314.61 and 7,963.65 is: 10,974.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.93 : 15,314.61 = 7,963.65 : x
  2. Step 2: Convert to fraction form
    11,112.93/15,314.61 = 7,963.65/x
  3. Step 3: Cross multiply
    11,112.93x = 15,314.61 × 7,963.65
  4. Step 4: Simplify right side
    11,112.93x = 121,960,193.93
  5. Step 5: Solve for x
    x = 121,960,193.93/11,112.93
  6. Step 6: Final answer
    x = 10,974.62

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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.