Home / 12,124.47-18,180.55-5,545.01

Finding the Fourth Proportional to 12,124.47, 18,180.55 and 5,545.01

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Solution

The fourth proportional to 12,124.47, 18,180.55 and 5,545.01 is: 8,314.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.47 : 18,180.55 = 5,545.01 : x
  2. Step 2: Convert to fraction form
    12,124.47/18,180.55 = 5,545.01/x
  3. Step 3: Cross multiply
    12,124.47x = 18,180.55 × 5,545.01
  4. Step 4: Simplify right side
    12,124.47x = 100,811,363.14
  5. Step 5: Solve for x
    x = 100,811,363.14/12,124.47
  6. Step 6: Final answer
    x = 8,314.71

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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.