Home / 7,765.12-11,645.76-3,601.12

Finding the Fourth Proportional to 7,765.12, 11,645.76 and 3,601.12

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Solution

The fourth proportional to 7,765.12, 11,645.76 and 3,601.12 is: 5,400.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.12 : 11,645.76 = 3,601.12 : x
  2. Step 2: Convert to fraction form
    7,765.12/11,645.76 = 3,601.12/x
  3. Step 3: Cross multiply
    7,765.12x = 11,645.76 × 3,601.12
  4. Step 4: Simplify right side
    7,765.12x = 41,937,779.25
  5. Step 5: Solve for x
    x = 41,937,779.25/7,765.12
  6. Step 6: Final answer
    x = 5,400.79

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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.