Home / 14,422.35-21,631.36-11,972.91

Finding the Fourth Proportional to 14,422.35, 21,631.36 and 11,972.91

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Solution

The fourth proportional to 14,422.35, 21,631.36 and 11,972.91 is: 17,957.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,422.35 : 21,631.36 = 11,972.91 : x
  2. Step 2: Convert to fraction form
    14,422.35/21,631.36 = 11,972.91/x
  3. Step 3: Cross multiply
    14,422.35x = 21,631.36 × 11,972.91
  4. Step 4: Simplify right side
    14,422.35x = 258,990,326.46
  5. Step 5: Solve for x
    x = 258,990,326.46/14,422.35
  6. Step 6: Final answer
    x = 17,957.57

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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.