Home / 10,360.20-15,540.30-5,986.20

Finding the Fourth Proportional to 10,360.20, 15,540.30 and 5,986.20

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Solution

The fourth proportional to 10,360.20, 15,540.30 and 5,986.20 is: 8,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.20 : 15,540.30 = 5,986.20 : x
  2. Step 2: Convert to fraction form
    10,360.20/15,540.30 = 5,986.20/x
  3. Step 3: Cross multiply
    10,360.20x = 15,540.30 × 5,986.20
  4. Step 4: Simplify right side
    10,360.20x = 93,027,343.86
  5. Step 5: Solve for x
    x = 93,027,343.86/10,360.20
  6. Step 6: Final answer
    x = 8,979.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.