Home / 12,273.12-18,411.84-4,492.80

Finding the Fourth Proportional to 12,273.12, 18,411.84 and 4,492.80

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Solution

The fourth proportional to 12,273.12, 18,411.84 and 4,492.80 is: 6,739.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,273.12 : 18,411.84 = 4,492.80 : x
  2. Step 2: Convert to fraction form
    12,273.12/18,411.84 = 4,492.80/x
  3. Step 3: Cross multiply
    12,273.12x = 18,411.84 × 4,492.80
  4. Step 4: Simplify right side
    12,273.12x = 82,720,714.75
  5. Step 5: Solve for x
    x = 82,720,714.75/12,273.12
  6. Step 6: Final answer
    x = 6,739.99

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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.