Home / 10,961.35-15,122.96-6,242.29

Finding the Fourth Proportional to 10,961.35, 15,122.96 and 6,242.29

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Solution

The fourth proportional to 10,961.35, 15,122.96 and 6,242.29 is: 8,612.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.35 : 15,122.96 = 6,242.29 : x
  2. Step 2: Convert to fraction form
    10,961.35/15,122.96 = 6,242.29/x
  3. Step 3: Cross multiply
    10,961.35x = 15,122.96 × 6,242.29
  4. Step 4: Simplify right side
    10,961.35x = 94,401,795.15
  5. Step 5: Solve for x
    x = 94,401,795.15/10,961.35
  6. Step 6: Final answer
    x = 8,612.25

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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.