Home / 18,045.72-27,049.95-10,136.61

Finding the Fourth Proportional to 18,045.72, 27,049.95 and 10,136.61

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Solution

The fourth proportional to 18,045.72, 27,049.95 and 10,136.61 is: 15,194.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,045.72 : 27,049.95 = 10,136.61 : x
  2. Step 2: Convert to fraction form
    18,045.72/27,049.95 = 10,136.61/x
  3. Step 3: Cross multiply
    18,045.72x = 27,049.95 × 10,136.61
  4. Step 4: Simplify right side
    18,045.72x = 274,194,793.67
  5. Step 5: Solve for x
    x = 274,194,793.67/18,045.72
  6. Step 6: Final answer
    x = 15,194.45

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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.