Home / 7,042.60-10,542.30-4,112.20

Finding the Fourth Proportional to 7,042.60, 10,542.30 and 4,112.20

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Solution

The fourth proportional to 7,042.60, 10,542.30 and 4,112.20 is: 6,155.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.60 : 10,542.30 = 4,112.20 : x
  2. Step 2: Convert to fraction form
    7,042.60/10,542.30 = 4,112.20/x
  3. Step 3: Cross multiply
    7,042.60x = 10,542.30 × 4,112.20
  4. Step 4: Simplify right side
    7,042.60x = 43,352,046.06
  5. Step 5: Solve for x
    x = 43,352,046.06/7,042.60
  6. Step 6: Final answer
    x = 6,155.69

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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.