Home / 12,012.46-18,018.68-3,247.60

Finding the Fourth Proportional to 12,012.46, 18,018.68 and 3,247.60

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Solution

The fourth proportional to 12,012.46, 18,018.68 and 3,247.60 is: 4,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.46 : 18,018.68 = 3,247.60 : x
  2. Step 2: Convert to fraction form
    12,012.46/18,018.68 = 3,247.60/x
  3. Step 3: Cross multiply
    12,012.46x = 18,018.68 × 3,247.60
  4. Step 4: Simplify right side
    12,012.46x = 58,517,465.17
  5. Step 5: Solve for x
    x = 58,517,465.17/12,012.46
  6. Step 6: Final answer
    x = 4,871.40

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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.