Home / 7,610.06-11,419.11-5,403.15

Finding the Fourth Proportional to 7,610.06, 11,419.11 and 5,403.15

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Solution

The fourth proportional to 7,610.06, 11,419.11 and 5,403.15 is: 8,107.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,610.06 : 11,419.11 = 5,403.15 : x
  2. Step 2: Convert to fraction form
    7,610.06/11,419.11 = 5,403.15/x
  3. Step 3: Cross multiply
    7,610.06x = 11,419.11 × 5,403.15
  4. Step 4: Simplify right side
    7,610.06x = 61,699,164.20
  5. Step 5: Solve for x
    x = 61,699,164.20/7,610.06
  6. Step 6: Final answer
    x = 8,107.58

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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.