Home / 12,388.80-18,588.33-6,841.65

Finding the Fourth Proportional to 12,388.80, 18,588.33 and 6,841.65

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Solution

The fourth proportional to 12,388.80, 18,588.33 and 6,841.65 is: 10,265.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,388.80 : 18,588.33 = 6,841.65 : x
  2. Step 2: Convert to fraction form
    12,388.80/18,588.33 = 6,841.65/x
  3. Step 3: Cross multiply
    12,388.80x = 18,588.33 × 6,841.65
  4. Step 4: Simplify right side
    12,388.80x = 127,174,847.94
  5. Step 5: Solve for x
    x = 127,174,847.94/12,388.80
  6. Step 6: Final answer
    x = 10,265.31

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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.