Home / 18,102.15-27,145.53-8,247.69

Finding the Fourth Proportional to 18,102.15, 27,145.53 and 8,247.69

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Solution

The fourth proportional to 18,102.15, 27,145.53 and 8,247.69 is: 12,368.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,102.15 : 27,145.53 = 8,247.69 : x
  2. Step 2: Convert to fraction form
    18,102.15/27,145.53 = 8,247.69/x
  3. Step 3: Cross multiply
    18,102.15x = 27,145.53 × 8,247.69
  4. Step 4: Simplify right side
    18,102.15x = 223,887,963.57
  5. Step 5: Solve for x
    x = 223,887,963.57/18,102.15
  6. Step 6: Final answer
    x = 12,368.03

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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.