Home / 18,144.24-27,154.26-12,603.84

Finding the Fourth Proportional to 18,144.24, 27,154.26 and 12,603.84

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Solution

The fourth proportional to 18,144.24, 27,154.26 and 12,603.84 is: 18,862.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.24 : 27,154.26 = 12,603.84 : x
  2. Step 2: Convert to fraction form
    18,144.24/27,154.26 = 12,603.84/x
  3. Step 3: Cross multiply
    18,144.24x = 27,154.26 × 12,603.84
  4. Step 4: Simplify right side
    18,144.24x = 342,247,948.36
  5. Step 5: Solve for x
    x = 342,247,948.36/18,144.24
  6. Step 6: Final answer
    x = 18,862.62

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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.