Home / 19,219.71-28,833.46-8,126.38

Finding the Fourth Proportional to 19,219.71, 28,833.46 and 8,126.38

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Solution

The fourth proportional to 19,219.71, 28,833.46 and 8,126.38 is: 12,191.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219.71 : 28,833.46 = 8,126.38 : x
  2. Step 2: Convert to fraction form
    19,219.71/28,833.46 = 8,126.38/x
  3. Step 3: Cross multiply
    19,219.71x = 28,833.46 × 8,126.38
  4. Step 4: Simplify right side
    19,219.71x = 234,311,731.80
  5. Step 5: Solve for x
    x = 234,311,731.80/19,219.71
  6. Step 6: Final answer
    x = 12,191.22

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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.