Home / 12,124.97-18,181.30-5,545.52

Finding the Fourth Proportional to 12,124.97, 18,181.30 and 5,545.52

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Solution

The fourth proportional to 12,124.97, 18,181.30 and 5,545.52 is: 8,315.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.97 : 18,181.30 = 5,545.52 : x
  2. Step 2: Convert to fraction form
    12,124.97/18,181.30 = 5,545.52/x
  3. Step 3: Cross multiply
    12,124.97x = 18,181.30 × 5,545.52
  4. Step 4: Simplify right side
    12,124.97x = 100,824,644.14
  5. Step 5: Solve for x
    x = 100,824,644.14/12,124.97
  6. Step 6: Final answer
    x = 8,315.46

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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.