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Finding the Fourth Proportional to 12,454.65, 17,152.43 and 12,182.49

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Solution

The fourth proportional to 12,454.65, 17,152.43 and 12,182.49 is: 16,777.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454.65 : 17,152.43 = 12,182.49 : x
  2. Step 2: Convert to fraction form
    12,454.65/17,152.43 = 12,182.49/x
  3. Step 3: Cross multiply
    12,454.65x = 17,152.43 × 12,182.49
  4. Step 4: Simplify right side
    12,454.65x = 208,959,246.04
  5. Step 5: Solve for x
    x = 208,959,246.04/12,454.65
  6. Step 6: Final answer
    x = 16,777.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.