Home / 18,853.08-28,279.64-5,705.44

Finding the Fourth Proportional to 18,853.08, 28,279.64 and 5,705.44

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Solution

The fourth proportional to 18,853.08, 28,279.64 and 5,705.44 is: 8,558.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853.08 : 28,279.64 = 5,705.44 : x
  2. Step 2: Convert to fraction form
    18,853.08/28,279.64 = 5,705.44/x
  3. Step 3: Cross multiply
    18,853.08x = 28,279.64 × 5,705.44
  4. Step 4: Simplify right side
    18,853.08x = 161,347,789.24
  5. Step 5: Solve for x
    x = 161,347,789.24/18,853.08
  6. Step 6: Final answer
    x = 8,558.17

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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.