Home / 12,025.60-18,035.20-3,705.60

Finding the Fourth Proportional to 12,025.60, 18,035.20 and 3,705.60

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Solution

The fourth proportional to 12,025.60, 18,035.20 and 3,705.60 is: 5,557.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,025.60 : 18,035.20 = 3,705.60 : x
  2. Step 2: Convert to fraction form
    12,025.60/18,035.20 = 3,705.60/x
  3. Step 3: Cross multiply
    12,025.60x = 18,035.20 × 3,705.60
  4. Step 4: Simplify right side
    12,025.60x = 66,831,237.12
  5. Step 5: Solve for x
    x = 66,831,237.12/12,025.60
  6. Step 6: Final answer
    x = 5,557.41

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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.