Home / 13,554.92-18,792.34-13,073.78

Finding the Fourth Proportional to 13,554.92, 18,792.34 and 13,073.78

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Solution

The fourth proportional to 13,554.92, 18,792.34 and 13,073.78 is: 18,125.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.92 : 18,792.34 = 13,073.78 : x
  2. Step 2: Convert to fraction form
    13,554.92/18,792.34 = 13,073.78/x
  3. Step 3: Cross multiply
    13,554.92x = 18,792.34 × 13,073.78
  4. Step 4: Simplify right side
    13,554.92x = 245,686,918.85
  5. Step 5: Solve for x
    x = 245,686,918.85/13,554.92
  6. Step 6: Final answer
    x = 18,125.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.