Home / 12,960.36-19,439.91-3,600.32

Finding the Fourth Proportional to 12,960.36, 19,439.91 and 3,600.32

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Solution

The fourth proportional to 12,960.36, 19,439.91 and 3,600.32 is: 5,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960.36 : 19,439.91 = 3,600.32 : x
  2. Step 2: Convert to fraction form
    12,960.36/19,439.91 = 3,600.32/x
  3. Step 3: Cross multiply
    12,960.36x = 19,439.91 × 3,600.32
  4. Step 4: Simplify right side
    12,960.36x = 69,989,799.57
  5. Step 5: Solve for x
    x = 69,989,799.57/12,960.36
  6. Step 6: Final answer
    x = 5,400.30

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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.