Home / 14,078.79-21,118.20-6,179.49

Finding the Fourth Proportional to 14,078.79, 21,118.20 and 6,179.49

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Solution

The fourth proportional to 14,078.79, 21,118.20 and 6,179.49 is: 9,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.79 : 21,118.20 = 6,179.49 : x
  2. Step 2: Convert to fraction form
    14,078.79/21,118.20 = 6,179.49/x
  3. Step 3: Cross multiply
    14,078.79x = 21,118.20 × 6,179.49
  4. Step 4: Simplify right side
    14,078.79x = 130,499,705.72
  5. Step 5: Solve for x
    x = 130,499,705.72/14,078.79
  6. Step 6: Final answer
    x = 9,269.24

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Half scale
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Double scale
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Similar ratio
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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.