Home / 15,935.88-21,994.18-9,220.34

Finding the Fourth Proportional to 15,935.88, 21,994.18 and 9,220.34

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Solution

The fourth proportional to 15,935.88, 21,994.18 and 9,220.34 is: 12,725.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,935.88 : 21,994.18 = 9,220.34 : x
  2. Step 2: Convert to fraction form
    15,935.88/21,994.18 = 9,220.34/x
  3. Step 3: Cross multiply
    15,935.88x = 21,994.18 × 9,220.34
  4. Step 4: Simplify right side
    15,935.88x = 202,793,817.62
  5. Step 5: Solve for x
    x = 202,793,817.62/15,935.88
  6. Step 6: Final answer
    x = 12,725.61

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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.