Home / 19,176.20-28,747.20-7,486.70

Finding the Fourth Proportional to 19,176.20, 28,747.20 and 7,486.70

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Solution

The fourth proportional to 19,176.20, 28,747.20 and 7,486.70 is: 11,223.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,176.20 : 28,747.20 = 7,486.70 : x
  2. Step 2: Convert to fraction form
    19,176.20/28,747.20 = 7,486.70/x
  3. Step 3: Cross multiply
    19,176.20x = 28,747.20 × 7,486.70
  4. Step 4: Simplify right side
    19,176.20x = 215,221,662.24
  5. Step 5: Solve for x
    x = 215,221,662.24/19,176.20
  6. Step 6: Final answer
    x = 11,223.37

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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.