Home / 12,712.20-19,069.02-3,948.36

Finding the Fourth Proportional to 12,712.20, 19,069.02 and 3,948.36

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Solution

The fourth proportional to 12,712.20, 19,069.02 and 3,948.36 is: 5,922.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,712.20 : 19,069.02 = 3,948.36 : x
  2. Step 2: Convert to fraction form
    12,712.20/19,069.02 = 3,948.36/x
  3. Step 3: Cross multiply
    12,712.20x = 19,069.02 × 3,948.36
  4. Step 4: Simplify right side
    12,712.20x = 75,291,355.81
  5. Step 5: Solve for x
    x = 75,291,355.81/12,712.20
  6. Step 6: Final answer
    x = 5,922.76

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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.