Home / 12,960.60-19,438.20-3,598.20

Finding the Fourth Proportional to 12,960.60, 19,438.20 and 3,598.20

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Solution

The fourth proportional to 12,960.60, 19,438.20 and 3,598.20 is: 5,396.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960.60 : 19,438.20 = 3,598.20 : x
  2. Step 2: Convert to fraction form
    12,960.60/19,438.20 = 3,598.20/x
  3. Step 3: Cross multiply
    12,960.60x = 19,438.20 × 3,598.20
  4. Step 4: Simplify right side
    12,960.60x = 69,942,531.24
  5. Step 5: Solve for x
    x = 69,942,531.24/12,960.60
  6. Step 6: Final answer
    x = 5,396.55

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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.