Home / 13,869.44-20,803.20-5,102.72

Finding the Fourth Proportional to 13,869.44, 20,803.20 and 5,102.72

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Solution

The fourth proportional to 13,869.44, 20,803.20 and 5,102.72 is: 7,653.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.44 : 20,803.20 = 5,102.72 : x
  2. Step 2: Convert to fraction form
    13,869.44/20,803.20 = 5,102.72/x
  3. Step 3: Cross multiply
    13,869.44x = 20,803.20 × 5,102.72
  4. Step 4: Simplify right side
    13,869.44x = 106,152,904.70
  5. Step 5: Solve for x
    x = 106,152,904.70/13,869.44
  6. Step 6: Final answer
    x = 7,653.73

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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.