Home / 12,230.10-18,180.17-11,870.94

Finding the Fourth Proportional to 12,230.10, 18,180.17 and 11,870.94

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Solution

The fourth proportional to 12,230.10, 18,180.17 and 11,870.94 is: 17,646.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.10 : 18,180.17 = 11,870.94 : x
  2. Step 2: Convert to fraction form
    12,230.10/18,180.17 = 11,870.94/x
  3. Step 3: Cross multiply
    12,230.10x = 18,180.17 × 11,870.94
  4. Step 4: Simplify right side
    12,230.10x = 215,815,760.60
  5. Step 5: Solve for x
    x = 215,815,760.60/12,230.10
  6. Step 6: Final answer
    x = 17,646.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.