Home / 13,811.84-20,717.25-3,951.10

Finding the Fourth Proportional to 13,811.84, 20,717.25 and 3,951.10

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Solution

The fourth proportional to 13,811.84, 20,717.25 and 3,951.10 is: 5,926.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.84 : 20,717.25 = 3,951.10 : x
  2. Step 2: Convert to fraction form
    13,811.84/20,717.25 = 3,951.10/x
  3. Step 3: Cross multiply
    13,811.84x = 20,717.25 × 3,951.10
  4. Step 4: Simplify right side
    13,811.84x = 81,855,926.48
  5. Step 5: Solve for x
    x = 81,855,926.48/13,811.84
  6. Step 6: Final answer
    x = 5,926.50

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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.