Home / 12,144.42-18,219.87-4,353.30

Finding the Fourth Proportional to 12,144.42, 18,219.87 and 4,353.30

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Solution

The fourth proportional to 12,144.42, 18,219.87 and 4,353.30 is: 6,531.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.42 : 18,219.87 = 4,353.30 : x
  2. Step 2: Convert to fraction form
    12,144.42/18,219.87 = 4,353.30/x
  3. Step 3: Cross multiply
    12,144.42x = 18,219.87 × 4,353.30
  4. Step 4: Simplify right side
    12,144.42x = 79,316,560.07
  5. Step 5: Solve for x
    x = 79,316,560.07/12,144.42
  6. Step 6: Final answer
    x = 6,531.11

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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.