Home / 7,709.12-11,565.52-2,515

Finding the Fourth Proportional to 7,709.12, 11,565.52 and 2,515

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Solution

The fourth proportional to 7,709.12, 11,565.52 and 2,515 is: 3,773.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.12 : 11,565.52 = 2,515 : x
  2. Step 2: Convert to fraction form
    7,709.12/11,565.52 = 2,515/x
  3. Step 3: Cross multiply
    7,709.12x = 11,565.52 × 2,515
  4. Step 4: Simplify right side
    7,709.12x = 29,087,282.80
  5. Step 5: Solve for x
    x = 29,087,282.80/7,709.12
  6. Step 6: Final answer
    x = 3,773.10

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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.