Home / 12,182.63-18,179.66-10,870.43

Finding the Fourth Proportional to 12,182.63, 18,179.66 and 10,870.43

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Solution

The fourth proportional to 12,182.63, 18,179.66 and 10,870.43 is: 16,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182.63 : 18,179.66 = 10,870.43 : x
  2. Step 2: Convert to fraction form
    12,182.63/18,179.66 = 10,870.43/x
  3. Step 3: Cross multiply
    12,182.63x = 18,179.66 × 10,870.43
  4. Step 4: Simplify right side
    12,182.63x = 197,620,721.45
  5. Step 5: Solve for x
    x = 197,620,721.45/12,182.63
  6. Step 6: Final answer
    x = 16,221.52

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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.