Home / 12,578.88-18,873.49-6,654.19

Finding the Fourth Proportional to 12,578.88, 18,873.49 and 6,654.19

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Solution

The fourth proportional to 12,578.88, 18,873.49 and 6,654.19 is: 9,984.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578.88 : 18,873.49 = 6,654.19 : x
  2. Step 2: Convert to fraction form
    12,578.88/18,873.49 = 6,654.19/x
  3. Step 3: Cross multiply
    12,578.88x = 18,873.49 × 6,654.19
  4. Step 4: Simplify right side
    12,578.88x = 125,587,660.78
  5. Step 5: Solve for x
    x = 125,587,660.78/12,578.88
  6. Step 6: Final answer
    x = 9,984.01

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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.