Home / 12,579.80-18,860.70-6,335.36

Finding the Fourth Proportional to 12,579.80, 18,860.70 and 6,335.36

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Solution

The fourth proportional to 12,579.80, 18,860.70 and 6,335.36 is: 9,498.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.80 : 18,860.70 = 6,335.36 : x
  2. Step 2: Convert to fraction form
    12,579.80/18,860.70 = 6,335.36/x
  3. Step 3: Cross multiply
    12,579.80x = 18,860.70 × 6,335.36
  4. Step 4: Simplify right side
    12,579.80x = 119,489,324.35
  5. Step 5: Solve for x
    x = 119,489,324.35/12,579.80
  6. Step 6: Final answer
    x = 9,498.51

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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.