Home / 10,961.50-15,123.28-6,708.12

Finding the Fourth Proportional to 10,961.50, 15,123.28 and 6,708.12

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Solution

The fourth proportional to 10,961.50, 15,123.28 and 6,708.12 is: 9,255.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.50 : 15,123.28 = 6,708.12 : x
  2. Step 2: Convert to fraction form
    10,961.50/15,123.28 = 6,708.12/x
  3. Step 3: Cross multiply
    10,961.50x = 15,123.28 × 6,708.12
  4. Step 4: Simplify right side
    10,961.50x = 101,448,862.60
  5. Step 5: Solve for x
    x = 101,448,862.60/10,961.50
  6. Step 6: Final answer
    x = 9,255.02

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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.