Home / 15,132.27-20,879.24-8,840.91

Finding the Fourth Proportional to 15,132.27, 20,879.24 and 8,840.91

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Solution

The fourth proportional to 15,132.27, 20,879.24 and 8,840.91 is: 12,198.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132.27 : 20,879.24 = 8,840.91 : x
  2. Step 2: Convert to fraction form
    15,132.27/20,879.24 = 8,840.91/x
  3. Step 3: Cross multiply
    15,132.27x = 20,879.24 × 8,840.91
  4. Step 4: Simplify right side
    15,132.27x = 184,591,437.50
  5. Step 5: Solve for x
    x = 184,591,437.50/15,132.27
  6. Step 6: Final answer
    x = 12,198.53

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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.