Home / 12,754.69-19,131.43-3,869.62

Finding the Fourth Proportional to 12,754.69, 19,131.43 and 3,869.62

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Solution

The fourth proportional to 12,754.69, 19,131.43 and 3,869.62 is: 5,804.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,754.69 : 19,131.43 = 3,869.62 : x
  2. Step 2: Convert to fraction form
    12,754.69/19,131.43 = 3,869.62/x
  3. Step 3: Cross multiply
    12,754.69x = 19,131.43 × 3,869.62
  4. Step 4: Simplify right side
    12,754.69x = 74,031,416.08
  5. Step 5: Solve for x
    x = 74,031,416.08/12,754.69
  6. Step 6: Final answer
    x = 5,804.25

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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.