Home / 13,358.24-18,434.55-8,324.49

Finding the Fourth Proportional to 13,358.24, 18,434.55 and 8,324.49

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Solution

The fourth proportional to 13,358.24, 18,434.55 and 8,324.49 is: 11,487.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.24 : 18,434.55 = 8,324.49 : x
  2. Step 2: Convert to fraction form
    13,358.24/18,434.55 = 8,324.49/x
  3. Step 3: Cross multiply
    13,358.24x = 18,434.55 × 8,324.49
  4. Step 4: Simplify right side
    13,358.24x = 153,458,227.13
  5. Step 5: Solve for x
    x = 153,458,227.13/13,358.24
  6. Step 6: Final answer
    x = 11,487.91

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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.