Home / 19,176.80-28,709.60-11,758.88

Finding the Fourth Proportional to 19,176.80, 28,709.60 and 11,758.88

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Solution

The fourth proportional to 19,176.80, 28,709.60 and 11,758.88 is: 17,604.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,176.80 : 28,709.60 = 11,758.88 : x
  2. Step 2: Convert to fraction form
    19,176.80/28,709.60 = 11,758.88/x
  3. Step 3: Cross multiply
    19,176.80x = 28,709.60 × 11,758.88
  4. Step 4: Simplify right side
    19,176.80x = 337,592,741.25
  5. Step 5: Solve for x
    x = 337,592,741.25/19,176.80
  6. Step 6: Final answer
    x = 17,604.23

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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.