Home / 13,863.27-20,800.08-8,320.59

Finding the Fourth Proportional to 13,863.27, 20,800.08 and 8,320.59

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Solution

The fourth proportional to 13,863.27, 20,800.08 and 8,320.59 is: 12,483.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.27 : 20,800.08 = 8,320.59 : x
  2. Step 2: Convert to fraction form
    13,863.27/20,800.08 = 8,320.59/x
  3. Step 3: Cross multiply
    13,863.27x = 20,800.08 × 8,320.59
  4. Step 4: Simplify right side
    13,863.27x = 173,068,937.65
  5. Step 5: Solve for x
    x = 173,068,937.65/13,863.27
  6. Step 6: Final answer
    x = 12,483.99

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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.