Home / 18,853.19-28,279.83-6,369.87

Finding the Fourth Proportional to 18,853.19, 28,279.83 and 6,369.87

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Solution

The fourth proportional to 18,853.19, 28,279.83 and 6,369.87 is: 9,554.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853.19 : 28,279.83 = 6,369.87 : x
  2. Step 2: Convert to fraction form
    18,853.19/28,279.83 = 6,369.87/x
  3. Step 3: Cross multiply
    18,853.19x = 28,279.83 × 6,369.87
  4. Step 4: Simplify right side
    18,853.19x = 180,138,970.66
  5. Step 5: Solve for x
    x = 180,138,970.66/18,853.19
  6. Step 6: Final answer
    x = 9,554.83

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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.