Home / 7,715.24-11,507.04-7,581.95

Finding the Fourth Proportional to 7,715.24, 11,507.04 and 7,581.95

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Solution

The fourth proportional to 7,715.24, 11,507.04 and 7,581.95 is: 11,308.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.24 : 11,507.04 = 7,581.95 : x
  2. Step 2: Convert to fraction form
    7,715.24/11,507.04 = 7,581.95/x
  3. Step 3: Cross multiply
    7,715.24x = 11,507.04 × 7,581.95
  4. Step 4: Simplify right side
    7,715.24x = 87,245,764.02
  5. Step 5: Solve for x
    x = 87,245,764.02/7,715.24
  6. Step 6: Final answer
    x = 11,308.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.