Home / 10,961.22-15,122.79-6,242.16

Finding the Fourth Proportional to 10,961.22, 15,122.79 and 6,242.16

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Solution

The fourth proportional to 10,961.22, 15,122.79 and 6,242.16 is: 8,612.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.22 : 15,122.79 = 6,242.16 : x
  2. Step 2: Convert to fraction form
    10,961.22/15,122.79 = 6,242.16/x
  3. Step 3: Cross multiply
    10,961.22x = 15,122.79 × 6,242.16
  4. Step 4: Simplify right side
    10,961.22x = 94,398,874.83
  5. Step 5: Solve for x
    x = 94,398,874.83/10,961.22
  6. Step 6: Final answer
    x = 8,612.08

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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.