Home / 12,894.12-19,341.66-3,660.12

Finding the Fourth Proportional to 12,894.12, 19,341.66 and 3,660.12

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Solution

The fourth proportional to 12,894.12, 19,341.66 and 3,660.12 is: 5,490.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894.12 : 19,341.66 = 3,660.12 : x
  2. Step 2: Convert to fraction form
    12,894.12/19,341.66 = 3,660.12/x
  3. Step 3: Cross multiply
    12,894.12x = 19,341.66 × 3,660.12
  4. Step 4: Simplify right side
    12,894.12x = 70,792,796.60
  5. Step 5: Solve for x
    x = 70,792,796.60/12,894.12
  6. Step 6: Final answer
    x = 5,490.32

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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.