Home / 19,107.76-28,660.92-7,862.68

Finding the Fourth Proportional to 19,107.76, 28,660.92 and 7,862.68

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Solution

The fourth proportional to 19,107.76, 28,660.92 and 7,862.68 is: 11,793.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,107.76 : 28,660.92 = 7,862.68 : x
  2. Step 2: Convert to fraction form
    19,107.76/28,660.92 = 7,862.68/x
  3. Step 3: Cross multiply
    19,107.76x = 28,660.92 × 7,862.68
  4. Step 4: Simplify right side
    19,107.76x = 225,351,642.47
  5. Step 5: Solve for x
    x = 225,351,642.47/19,107.76
  6. Step 6: Final answer
    x = 11,793.72

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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.