Home / 15,994.12-22,072.98-8,920.48

Finding the Fourth Proportional to 15,994.12, 22,072.98 and 8,920.48

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Solution

The fourth proportional to 15,994.12, 22,072.98 and 8,920.48 is: 12,310.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,994.12 : 22,072.98 = 8,920.48 : x
  2. Step 2: Convert to fraction form
    15,994.12/22,072.98 = 8,920.48/x
  3. Step 3: Cross multiply
    15,994.12x = 22,072.98 × 8,920.48
  4. Step 4: Simplify right side
    15,994.12x = 196,901,576.63
  5. Step 5: Solve for x
    x = 196,901,576.63/15,994.12
  6. Step 6: Final answer
    x = 12,310.87

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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.