Home / 18,085.26-27,145.40-8,731.85

Finding the Fourth Proportional to 18,085.26, 27,145.40 and 8,731.85

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Solution

The fourth proportional to 18,085.26, 27,145.40 and 8,731.85 is: 13,106.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,085.26 : 27,145.40 = 8,731.85 : x
  2. Step 2: Convert to fraction form
    18,085.26/27,145.40 = 8,731.85/x
  3. Step 3: Cross multiply
    18,085.26x = 27,145.40 × 8,731.85
  4. Step 4: Simplify right side
    18,085.26x = 237,029,381.60
  5. Step 5: Solve for x
    x = 237,029,381.60/18,085.26
  6. Step 6: Final answer
    x = 13,106.22

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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.