Home / 13,391.33-18,472.86-10,876.28

Finding the Fourth Proportional to 13,391.33, 18,472.86 and 10,876.28

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Solution

The fourth proportional to 13,391.33, 18,472.86 and 10,876.28 is: 15,003.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.33 : 18,472.86 = 10,876.28 : x
  2. Step 2: Convert to fraction form
    13,391.33/18,472.86 = 10,876.28/x
  3. Step 3: Cross multiply
    13,391.33x = 18,472.86 × 10,876.28
  4. Step 4: Simplify right side
    13,391.33x = 200,915,905.40
  5. Step 5: Solve for x
    x = 200,915,905.40/13,391.33
  6. Step 6: Final answer
    x = 15,003.44

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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.