Home / 10,988.44-15,168.54-7,636.12

Finding the Fourth Proportional to 10,988.44, 15,168.54 and 7,636.12

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Solution

The fourth proportional to 10,988.44, 15,168.54 and 7,636.12 is: 10,540.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.44 : 15,168.54 = 7,636.12 : x
  2. Step 2: Convert to fraction form
    10,988.44/15,168.54 = 7,636.12/x
  3. Step 3: Cross multiply
    10,988.44x = 15,168.54 × 7,636.12
  4. Step 4: Simplify right side
    10,988.44x = 115,828,791.66
  5. Step 5: Solve for x
    x = 115,828,791.66/10,988.44
  6. Step 6: Final answer
    x = 10,540.97

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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.