Home / 19,876.68-29,821.26-8,195.40

Finding the Fourth Proportional to 19,876.68, 29,821.26 and 8,195.40

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Solution

The fourth proportional to 19,876.68, 29,821.26 and 8,195.40 is: 12,295.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,876.68 : 29,821.26 = 8,195.40 : x
  2. Step 2: Convert to fraction form
    19,876.68/29,821.26 = 8,195.40/x
  3. Step 3: Cross multiply
    19,876.68x = 29,821.26 × 8,195.40
  4. Step 4: Simplify right side
    19,876.68x = 244,397,154.20
  5. Step 5: Solve for x
    x = 244,397,154.20/19,876.68
  6. Step 6: Final answer
    x = 12,295.67

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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.