Home / 17,872.19-26,790.85-8,509.69

Finding the Fourth Proportional to 17,872.19, 26,790.85 and 8,509.69

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Solution

The fourth proportional to 17,872.19, 26,790.85 and 8,509.69 is: 12,756.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,872.19 : 26,790.85 = 8,509.69 : x
  2. Step 2: Convert to fraction form
    17,872.19/26,790.85 = 8,509.69/x
  3. Step 3: Cross multiply
    17,872.19x = 26,790.85 × 8,509.69
  4. Step 4: Simplify right side
    17,872.19x = 227,981,872.46
  5. Step 5: Solve for x
    x = 227,981,872.46/17,872.19
  6. Step 6: Final answer
    x = 12,756.23

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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.