Home / 19,106.80-28,660.20-5,959.15

Finding the Fourth Proportional to 19,106.80, 28,660.20 and 5,959.15

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Solution

The fourth proportional to 19,106.80, 28,660.20 and 5,959.15 is: 8,938.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,106.80 : 28,660.20 = 5,959.15 : x
  2. Step 2: Convert to fraction form
    19,106.80/28,660.20 = 5,959.15/x
  3. Step 3: Cross multiply
    19,106.80x = 28,660.20 × 5,959.15
  4. Step 4: Simplify right side
    19,106.80x = 170,790,430.83
  5. Step 5: Solve for x
    x = 170,790,430.83/19,106.80
  6. Step 6: Final answer
    x = 8,938.73

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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.