Home / 13,918.35-20,872.33-5,595.55

Finding the Fourth Proportional to 13,918.35, 20,872.33 and 5,595.55

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Solution

The fourth proportional to 13,918.35, 20,872.33 and 5,595.55 is: 8,391.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.35 : 20,872.33 = 5,595.55 : x
  2. Step 2: Convert to fraction form
    13,918.35/20,872.33 = 5,595.55/x
  3. Step 3: Cross multiply
    13,918.35x = 20,872.33 × 5,595.55
  4. Step 4: Simplify right side
    13,918.35x = 116,792,166.13
  5. Step 5: Solve for x
    x = 116,792,166.13/13,918.35
  6. Step 6: Final answer
    x = 8,391.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.