Home / 10,360.20-15,540.30-7,465.80

Finding the Fourth Proportional to 10,360.20, 15,540.30 and 7,465.80

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Solution

The fourth proportional to 10,360.20, 15,540.30 and 7,465.80 is: 11,198.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.20 : 15,540.30 = 7,465.80 : x
  2. Step 2: Convert to fraction form
    10,360.20/15,540.30 = 7,465.80/x
  3. Step 3: Cross multiply
    10,360.20x = 15,540.30 × 7,465.80
  4. Step 4: Simplify right side
    10,360.20x = 116,020,771.74
  5. Step 5: Solve for x
    x = 116,020,771.74/10,360.20
  6. Step 6: Final answer
    x = 11,198.70

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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.