Home / 18,780.76-28,151.67-11,744.62

Finding the Fourth Proportional to 18,780.76, 28,151.67 and 11,744.62

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Solution

The fourth proportional to 18,780.76, 28,151.67 and 11,744.62 is: 17,604.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780.76 : 28,151.67 = 11,744.62 : x
  2. Step 2: Convert to fraction form
    18,780.76/28,151.67 = 11,744.62/x
  3. Step 3: Cross multiply
    18,780.76x = 28,151.67 × 11,744.62
  4. Step 4: Simplify right side
    18,780.76x = 330,630,666.52
  5. Step 5: Solve for x
    x = 330,630,666.52/18,780.76
  6. Step 6: Final answer
    x = 17,604.75

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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.