Home / 14,215.44-19,574.28-11,221.68

Finding the Fourth Proportional to 14,215.44, 19,574.28 and 11,221.68

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Solution

The fourth proportional to 14,215.44, 19,574.28 and 11,221.68 is: 15,451.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.44 : 19,574.28 = 11,221.68 : x
  2. Step 2: Convert to fraction form
    14,215.44/19,574.28 = 11,221.68/x
  3. Step 3: Cross multiply
    14,215.44x = 19,574.28 × 11,221.68
  4. Step 4: Simplify right side
    14,215.44x = 219,656,306.39
  5. Step 5: Solve for x
    x = 219,656,306.39/14,215.44
  6. Step 6: Final answer
    x = 15,451.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.