Home / 12,046.80-18,066.54-3,280.56

Finding the Fourth Proportional to 12,046.80, 18,066.54 and 3,280.56

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Solution

The fourth proportional to 12,046.80, 18,066.54 and 3,280.56 is: 4,919.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,046.80 : 18,066.54 = 3,280.56 : x
  2. Step 2: Convert to fraction form
    12,046.80/18,066.54 = 3,280.56/x
  3. Step 3: Cross multiply
    12,046.80x = 18,066.54 × 3,280.56
  4. Step 4: Simplify right side
    12,046.80x = 59,268,368.46
  5. Step 5: Solve for x
    x = 59,268,368.46/12,046.80
  6. Step 6: Final answer
    x = 4,919.84

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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.