Home / 12,349.20-18,511.20-6,099.60

Finding the Fourth Proportional to 12,349.20, 18,511.20 and 6,099.60

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Solution

The fourth proportional to 12,349.20, 18,511.20 and 6,099.60 is: 9,143.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,349.20 : 18,511.20 = 6,099.60 : x
  2. Step 2: Convert to fraction form
    12,349.20/18,511.20 = 6,099.60/x
  3. Step 3: Cross multiply
    12,349.20x = 18,511.20 × 6,099.60
  4. Step 4: Simplify right side
    12,349.20x = 112,910,915.52
  5. Step 5: Solve for x
    x = 112,910,915.52/12,349.20
  6. Step 6: Final answer
    x = 9,143.18

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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.