Home / 13,306.24-18,363.36-7,640.97

Finding the Fourth Proportional to 13,306.24, 18,363.36 and 7,640.97

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Solution

The fourth proportional to 13,306.24, 18,363.36 and 7,640.97 is: 10,544.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.24 : 18,363.36 = 7,640.97 : x
  2. Step 2: Convert to fraction form
    13,306.24/18,363.36 = 7,640.97/x
  3. Step 3: Cross multiply
    13,306.24x = 18,363.36 × 7,640.97
  4. Step 4: Simplify right side
    13,306.24x = 140,313,882.86
  5. Step 5: Solve for x
    x = 140,313,882.86/13,306.24
  6. Step 6: Final answer
    x = 10,544.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.