Home / 12,579.40-18,860.85-7,033.33

Finding the Fourth Proportional to 12,579.40, 18,860.85 and 7,033.33

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Solution

The fourth proportional to 12,579.40, 18,860.85 and 7,033.33 is: 10,545.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.40 : 18,860.85 = 7,033.33 : x
  2. Step 2: Convert to fraction form
    12,579.40/18,860.85 = 7,033.33/x
  3. Step 3: Cross multiply
    12,579.40x = 18,860.85 × 7,033.33
  4. Step 4: Simplify right side
    12,579.40x = 132,654,582.13
  5. Step 5: Solve for x
    x = 132,654,582.13/12,579.40
  6. Step 6: Final answer
    x = 10,545.38

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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.