Home / 12,267.36-18,398.46-3,948.12

Finding the Fourth Proportional to 12,267.36, 18,398.46 and 3,948.12

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Solution

The fourth proportional to 12,267.36, 18,398.46 and 3,948.12 is: 5,921.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,267.36 : 18,398.46 = 3,948.12 : x
  2. Step 2: Convert to fraction form
    12,267.36/18,398.46 = 3,948.12/x
  3. Step 3: Cross multiply
    12,267.36x = 18,398.46 × 3,948.12
  4. Step 4: Simplify right side
    12,267.36x = 72,639,327.90
  5. Step 5: Solve for x
    x = 72,639,327.90/12,267.36
  6. Step 6: Final answer
    x = 5,921.35

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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.