Home / 12,487.97-18,725.65-4,165.02

Finding the Fourth Proportional to 12,487.97, 18,725.65 and 4,165.02

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Solution

The fourth proportional to 12,487.97, 18,725.65 and 4,165.02 is: 6,245.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.97 : 18,725.65 = 4,165.02 : x
  2. Step 2: Convert to fraction form
    12,487.97/18,725.65 = 4,165.02/x
  3. Step 3: Cross multiply
    12,487.97x = 18,725.65 × 4,165.02
  4. Step 4: Simplify right side
    12,487.97x = 77,992,696.35
  5. Step 5: Solve for x
    x = 77,992,696.35/12,487.97
  6. Step 6: Final answer
    x = 6,245.43

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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.