Home / 17,813.87-26,721.11-6,725.78

Finding the Fourth Proportional to 17,813.87, 26,721.11 and 6,725.78

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Solution

The fourth proportional to 17,813.87, 26,721.11 and 6,725.78 is: 10,088.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,813.87 : 26,721.11 = 6,725.78 : x
  2. Step 2: Convert to fraction form
    17,813.87/26,721.11 = 6,725.78/x
  3. Step 3: Cross multiply
    17,813.87x = 26,721.11 × 6,725.78
  4. Step 4: Simplify right side
    17,813.87x = 179,720,139.98
  5. Step 5: Solve for x
    x = 179,720,139.98/17,813.87
  6. Step 6: Final answer
    x = 10,088.78

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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.