Home / 11,172.07-15,422.97-7,653.70

Finding the Fourth Proportional to 11,172.07, 15,422.97 and 7,653.70

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Solution

The fourth proportional to 11,172.07, 15,422.97 and 7,653.70 is: 10,565.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.07 : 15,422.97 = 7,653.70 : x
  2. Step 2: Convert to fraction form
    11,172.07/15,422.97 = 7,653.70/x
  3. Step 3: Cross multiply
    11,172.07x = 15,422.97 × 7,653.70
  4. Step 4: Simplify right side
    11,172.07x = 118,042,785.49
  5. Step 5: Solve for x
    x = 118,042,785.49/11,172.07
  6. Step 6: Final answer
    x = 10,565.88

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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.