Home / 9,793.08-13,515.36-6,438.60

Finding the Fourth Proportional to 9,793.08, 13,515.36 and 6,438.60

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Solution

The fourth proportional to 9,793.08, 13,515.36 and 6,438.60 is: 8,885.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,793.08 : 13,515.36 = 6,438.60 : x
  2. Step 2: Convert to fraction form
    9,793.08/13,515.36 = 6,438.60/x
  3. Step 3: Cross multiply
    9,793.08x = 13,515.36 × 6,438.60
  4. Step 4: Simplify right side
    9,793.08x = 87,019,996.90
  5. Step 5: Solve for x
    x = 87,019,996.90/9,793.08
  6. Step 6: Final answer
    x = 8,885.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.