Home / 18,255.16-27,385.55-7,725.23

Finding the Fourth Proportional to 18,255.16, 27,385.55 and 7,725.23

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Solution

The fourth proportional to 18,255.16, 27,385.55 and 7,725.23 is: 11,589.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.16 : 27,385.55 = 7,725.23 : x
  2. Step 2: Convert to fraction form
    18,255.16/27,385.55 = 7,725.23/x
  3. Step 3: Cross multiply
    18,255.16x = 27,385.55 × 7,725.23
  4. Step 4: Simplify right side
    18,255.16x = 211,559,633.80
  5. Step 5: Solve for x
    x = 211,559,633.80/18,255.16
  6. Step 6: Final answer
    x = 11,589.04

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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.