Home / 12,351.47-18,545.66-12,166.94

Finding the Fourth Proportional to 12,351.47, 18,545.66 and 12,166.94

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Solution

The fourth proportional to 12,351.47, 18,545.66 and 12,166.94 is: 18,268.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.47 : 18,545.66 = 12,166.94 : x
  2. Step 2: Convert to fraction form
    12,351.47/18,545.66 = 12,166.94/x
  3. Step 3: Cross multiply
    12,351.47x = 18,545.66 × 12,166.94
  4. Step 4: Simplify right side
    12,351.47x = 225,643,963.64
  5. Step 5: Solve for x
    x = 225,643,963.64/12,351.47
  6. Step 6: Final answer
    x = 18,268.59

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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.