Home / 15,956.94-22,023.20-12,172.96

Finding the Fourth Proportional to 15,956.94, 22,023.20 and 12,172.96

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Solution

The fourth proportional to 15,956.94, 22,023.20 and 12,172.96 is: 16,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,956.94 : 22,023.20 = 12,172.96 : x
  2. Step 2: Convert to fraction form
    15,956.94/22,023.20 = 12,172.96/x
  3. Step 3: Cross multiply
    15,956.94x = 22,023.20 × 12,172.96
  4. Step 4: Simplify right side
    15,956.94x = 268,087,422.56
  5. Step 5: Solve for x
    x = 268,087,422.56/15,956.94
  6. Step 6: Final answer
    x = 16,800.68

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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.