Home / 6,645.20-9,974.32-5,070.56

Finding the Fourth Proportional to 6,645.20, 9,974.32 and 5,070.56

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Solution

The fourth proportional to 6,645.20, 9,974.32 and 5,070.56 is: 7,610.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645.20 : 9,974.32 = 5,070.56 : x
  2. Step 2: Convert to fraction form
    6,645.20/9,974.32 = 5,070.56/x
  3. Step 3: Cross multiply
    6,645.20x = 9,974.32 × 5,070.56
  4. Step 4: Simplify right side
    6,645.20x = 50,575,388.02
  5. Step 5: Solve for x
    x = 50,575,388.02/6,645.20
  6. Step 6: Final answer
    x = 7,610.82

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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.