Home / 15,114.06-20,856.99-8,399.52

Finding the Fourth Proportional to 15,114.06, 20,856.99 and 8,399.52

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Solution

The fourth proportional to 15,114.06, 20,856.99 and 8,399.52 is: 11,591.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,114.06 : 20,856.99 = 8,399.52 : x
  2. Step 2: Convert to fraction form
    15,114.06/20,856.99 = 8,399.52/x
  3. Step 3: Cross multiply
    15,114.06x = 20,856.99 × 8,399.52
  4. Step 4: Simplify right side
    15,114.06x = 175,188,704.64
  5. Step 5: Solve for x
    x = 175,188,704.64/15,114.06
  6. Step 6: Final answer
    x = 11,591.11

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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.