Home / 12,276.18-18,414.18-4,485.60

Finding the Fourth Proportional to 12,276.18, 18,414.18 and 4,485.60

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Solution

The fourth proportional to 12,276.18, 18,414.18 and 4,485.60 is: 6,728.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.18 : 18,414.18 = 4,485.60 : x
  2. Step 2: Convert to fraction form
    12,276.18/18,414.18 = 4,485.60/x
  3. Step 3: Cross multiply
    12,276.18x = 18,414.18 × 4,485.60
  4. Step 4: Simplify right side
    12,276.18x = 82,598,645.81
  5. Step 5: Solve for x
    x = 82,598,645.81/12,276.18
  6. Step 6: Final answer
    x = 6,728.37

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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.