Home / 12,226.30-18,339.45-6,384.70

Finding the Fourth Proportional to 12,226.30, 18,339.45 and 6,384.70

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Solution

The fourth proportional to 12,226.30, 18,339.45 and 6,384.70 is: 9,577.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.30 : 18,339.45 = 6,384.70 : x
  2. Step 2: Convert to fraction form
    12,226.30/18,339.45 = 6,384.70/x
  3. Step 3: Cross multiply
    12,226.30x = 18,339.45 × 6,384.70
  4. Step 4: Simplify right side
    12,226.30x = 117,091,886.42
  5. Step 5: Solve for x
    x = 117,091,886.42/12,226.30
  6. Step 6: Final answer
    x = 9,577.05

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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.