Home / 18,780.80-28,174.43-6,302.04

Finding the Fourth Proportional to 18,780.80, 28,174.43 and 6,302.04

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Solution

The fourth proportional to 18,780.80, 28,174.43 and 6,302.04 is: 9,454.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780.80 : 28,174.43 = 6,302.04 : x
  2. Step 2: Convert to fraction form
    18,780.80/28,174.43 = 6,302.04/x
  3. Step 3: Cross multiply
    18,780.80x = 28,174.43 × 6,302.04
  4. Step 4: Simplify right side
    18,780.80x = 177,556,294.94
  5. Step 5: Solve for x
    x = 177,556,294.94/18,780.80
  6. Step 6: Final answer
    x = 9,454.14

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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.