Home / 12,018.20-18,036.84-8,346.44

Finding the Fourth Proportional to 12,018.20, 18,036.84 and 8,346.44

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Solution

The fourth proportional to 12,018.20, 18,036.84 and 8,346.44 is: 12,526.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018.20 : 18,036.84 = 8,346.44 : x
  2. Step 2: Convert to fraction form
    12,018.20/18,036.84 = 8,346.44/x
  3. Step 3: Cross multiply
    12,018.20x = 18,036.84 × 8,346.44
  4. Step 4: Simplify right side
    12,018.20x = 150,543,402.85
  5. Step 5: Solve for x
    x = 150,543,402.85/12,018.20
  6. Step 6: Final answer
    x = 12,526.29

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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.