Home / 12,556.89-18,836.82-4,237.74

Finding the Fourth Proportional to 12,556.89, 18,836.82 and 4,237.74

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Solution

The fourth proportional to 12,556.89, 18,836.82 and 4,237.74 is: 6,357.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.89 : 18,836.82 = 4,237.74 : x
  2. Step 2: Convert to fraction form
    12,556.89/18,836.82 = 4,237.74/x
  3. Step 3: Cross multiply
    12,556.89x = 18,836.82 × 4,237.74
  4. Step 4: Simplify right side
    12,556.89x = 79,825,545.59
  5. Step 5: Solve for x
    x = 79,825,545.59/12,556.89
  6. Step 6: Final answer
    x = 6,357.11

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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.