Home / 13,865.50-20,785.56-5,093.74

Finding the Fourth Proportional to 13,865.50, 20,785.56 and 5,093.74

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Solution

The fourth proportional to 13,865.50, 20,785.56 and 5,093.74 is: 7,635.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.50 : 20,785.56 = 5,093.74 : x
  2. Step 2: Convert to fraction form
    13,865.50/20,785.56 = 5,093.74/x
  3. Step 3: Cross multiply
    13,865.50x = 20,785.56 × 5,093.74
  4. Step 4: Simplify right side
    13,865.50x = 105,876,238.39
  5. Step 5: Solve for x
    x = 105,876,238.39/13,865.50
  6. Step 6: Final answer
    x = 7,635.95

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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.