Home / 13,856.90-20,793.55-5,097.96

Finding the Fourth Proportional to 13,856.90, 20,793.55 and 5,097.96

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Solution

The fourth proportional to 13,856.90, 20,793.55 and 5,097.96 is: 7,649.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856.90 : 20,793.55 = 5,097.96 : x
  2. Step 2: Convert to fraction form
    13,856.90/20,793.55 = 5,097.96/x
  3. Step 3: Cross multiply
    13,856.90x = 20,793.55 × 5,097.96
  4. Step 4: Simplify right side
    13,856.90x = 106,004,660.67
  5. Step 5: Solve for x
    x = 106,004,660.67/13,856.90
  6. Step 6: Final answer
    x = 7,649.95

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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.