Home / 10,958.60-15,121.68-6,242.60

Finding the Fourth Proportional to 10,958.60, 15,121.68 and 6,242.60

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Solution

The fourth proportional to 10,958.60, 15,121.68 and 6,242.60 is: 8,614.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.60 : 15,121.68 = 6,242.60 : x
  2. Step 2: Convert to fraction form
    10,958.60/15,121.68 = 6,242.60/x
  3. Step 3: Cross multiply
    10,958.60x = 15,121.68 × 6,242.60
  4. Step 4: Simplify right side
    10,958.60x = 94,398,599.57
  5. Step 5: Solve for x
    x = 94,398,599.57/10,958.60
  6. Step 6: Final answer
    x = 8,614.11

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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.