Home / 13,865.58-20,806.88-5,100.57

Finding the Fourth Proportional to 13,865.58, 20,806.88 and 5,100.57

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Solution

The fourth proportional to 13,865.58, 20,806.88 and 5,100.57 is: 7,653.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.58 : 20,806.88 = 5,100.57 : x
  2. Step 2: Convert to fraction form
    13,865.58/20,806.88 = 5,100.57/x
  3. Step 3: Cross multiply
    13,865.58x = 20,806.88 × 5,100.57
  4. Step 4: Simplify right side
    13,865.58x = 106,126,922.42
  5. Step 5: Solve for x
    x = 106,126,922.42/13,865.58
  6. Step 6: Final answer
    x = 7,653.98

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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.