Home / 10,961.43-15,129.63-6,767.25

Finding the Fourth Proportional to 10,961.43, 15,129.63 and 6,767.25

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Solution

The fourth proportional to 10,961.43, 15,129.63 and 6,767.25 is: 9,340.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.43 : 15,129.63 = 6,767.25 : x
  2. Step 2: Convert to fraction form
    10,961.43/15,129.63 = 6,767.25/x
  3. Step 3: Cross multiply
    10,961.43x = 15,129.63 × 6,767.25
  4. Step 4: Simplify right side
    10,961.43x = 102,385,988.62
  5. Step 5: Solve for x
    x = 102,385,988.62/10,961.43
  6. Step 6: Final answer
    x = 9,340.57

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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.