Home / 10,555.60-15,833.40-2,765.20

Finding the Fourth Proportional to 10,555.60, 15,833.40 and 2,765.20

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Solution

The fourth proportional to 10,555.60, 15,833.40 and 2,765.20 is: 4,147.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555.60 : 15,833.40 = 2,765.20 : x
  2. Step 2: Convert to fraction form
    10,555.60/15,833.40 = 2,765.20/x
  3. Step 3: Cross multiply
    10,555.60x = 15,833.40 × 2,765.20
  4. Step 4: Simplify right side
    10,555.60x = 43,782,517.68
  5. Step 5: Solve for x
    x = 43,782,517.68/10,555.60
  6. Step 6: Final answer
    x = 4,147.80

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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.