Home / 12,272.28-18,411.36-3,953.07

Finding the Fourth Proportional to 12,272.28, 18,411.36 and 3,953.07

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Solution

The fourth proportional to 12,272.28, 18,411.36 and 3,953.07 is: 5,930.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.28 : 18,411.36 = 3,953.07 : x
  2. Step 2: Convert to fraction form
    12,272.28/18,411.36 = 3,953.07/x
  3. Step 3: Cross multiply
    12,272.28x = 18,411.36 × 3,953.07
  4. Step 4: Simplify right side
    12,272.28x = 72,781,394.88
  5. Step 5: Solve for x
    x = 72,781,394.88/12,272.28
  6. Step 6: Final answer
    x = 5,930.55

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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.