Home / 10,959.72-15,122.30-6,243.90

Finding the Fourth Proportional to 10,959.72, 15,122.30 and 6,243.90

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Solution

The fourth proportional to 10,959.72, 15,122.30 and 6,243.90 is: 8,615.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959.72 : 15,122.30 = 6,243.90 : x
  2. Step 2: Convert to fraction form
    10,959.72/15,122.30 = 6,243.90/x
  3. Step 3: Cross multiply
    10,959.72x = 15,122.30 × 6,243.90
  4. Step 4: Simplify right side
    10,959.72x = 94,422,128.97
  5. Step 5: Solve for x
    x = 94,422,128.97/10,959.72
  6. Step 6: Final answer
    x = 8,615.38

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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.