Home / 12,280.46-18,418.08-3,513.02

Finding the Fourth Proportional to 12,280.46, 18,418.08 and 3,513.02

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Solution

The fourth proportional to 12,280.46, 18,418.08 and 3,513.02 is: 5,268.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.46 : 18,418.08 = 3,513.02 : x
  2. Step 2: Convert to fraction form
    12,280.46/18,418.08 = 3,513.02/x
  3. Step 3: Cross multiply
    12,280.46x = 18,418.08 × 3,513.02
  4. Step 4: Simplify right side
    12,280.46x = 64,703,083.40
  5. Step 5: Solve for x
    x = 64,703,083.40/12,280.46
  6. Step 6: Final answer
    x = 5,268.78

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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.