Home / 18,744.13-28,116.69-8,208.71

Finding the Fourth Proportional to 18,744.13, 28,116.69 and 8,208.71

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Solution

The fourth proportional to 18,744.13, 28,116.69 and 8,208.71 is: 12,313.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,744.13 : 28,116.69 = 8,208.71 : x
  2. Step 2: Convert to fraction form
    18,744.13/28,116.69 = 8,208.71/x
  3. Step 3: Cross multiply
    18,744.13x = 28,116.69 × 8,208.71
  4. Step 4: Simplify right side
    18,744.13x = 230,801,754.37
  5. Step 5: Solve for x
    x = 230,801,754.37/18,744.13
  6. Step 6: Final answer
    x = 12,313.28

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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.