Home / 13,832.43-20,756.84-12,956.78

Finding the Fourth Proportional to 13,832.43, 20,756.84 and 12,956.78

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Solution

The fourth proportional to 13,832.43, 20,756.84 and 12,956.78 is: 19,442.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,832.43 : 20,756.84 = 12,956.78 : x
  2. Step 2: Convert to fraction form
    13,832.43/20,756.84 = 12,956.78/x
  3. Step 3: Cross multiply
    13,832.43x = 20,756.84 × 12,956.78
  4. Step 4: Simplify right side
    13,832.43x = 268,941,640.81
  5. Step 5: Solve for x
    x = 268,941,640.81/13,832.43
  6. Step 6: Final answer
    x = 19,442.83

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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.