Home / 12,966.40-19,452.68-4,201.30

Finding the Fourth Proportional to 12,966.40, 19,452.68 and 4,201.30

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Solution

The fourth proportional to 12,966.40, 19,452.68 and 4,201.30 is: 6,302.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.40 : 19,452.68 = 4,201.30 : x
  2. Step 2: Convert to fraction form
    12,966.40/19,452.68 = 4,201.30/x
  3. Step 3: Cross multiply
    12,966.40x = 19,452.68 × 4,201.30
  4. Step 4: Simplify right side
    12,966.40x = 81,726,544.48
  5. Step 5: Solve for x
    x = 81,726,544.48/12,966.40
  6. Step 6: Final answer
    x = 6,302.95

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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.