Home / 13,789.78-20,689.35-6,003.70

Finding the Fourth Proportional to 13,789.78, 20,689.35 and 6,003.70

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Solution

The fourth proportional to 13,789.78, 20,689.35 and 6,003.70 is: 9,007.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.78 : 20,689.35 = 6,003.70 : x
  2. Step 2: Convert to fraction form
    13,789.78/20,689.35 = 6,003.70/x
  3. Step 3: Cross multiply
    13,789.78x = 20,689.35 × 6,003.70
  4. Step 4: Simplify right side
    13,789.78x = 124,212,650.60
  5. Step 5: Solve for x
    x = 124,212,650.60/13,789.78
  6. Step 6: Final answer
    x = 9,007.59

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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.