Home / 15,994.27-22,072.13-8,921.15

Finding the Fourth Proportional to 15,994.27, 22,072.13 and 8,921.15

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Solution

The fourth proportional to 15,994.27, 22,072.13 and 8,921.15 is: 12,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,994.27 : 22,072.13 = 8,921.15 : x
  2. Step 2: Convert to fraction form
    15,994.27/22,072.13 = 8,921.15/x
  3. Step 3: Cross multiply
    15,994.27x = 22,072.13 × 8,921.15
  4. Step 4: Simplify right side
    15,994.27x = 196,908,782.55
  5. Step 5: Solve for x
    x = 196,908,782.55/15,994.27
  6. Step 6: Final answer
    x = 12,311.21

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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.