Home / 11,477.28-15,847.44-8,820.48

Finding the Fourth Proportional to 11,477.28, 15,847.44 and 8,820.48

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Solution

The fourth proportional to 11,477.28, 15,847.44 and 8,820.48 is: 12,179.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,477.28 : 15,847.44 = 8,820.48 : x
  2. Step 2: Convert to fraction form
    11,477.28/15,847.44 = 8,820.48/x
  3. Step 3: Cross multiply
    11,477.28x = 15,847.44 × 8,820.48
  4. Step 4: Simplify right side
    11,477.28x = 139,782,027.57
  5. Step 5: Solve for x
    x = 139,782,027.57/11,477.28
  6. Step 6: Final answer
    x = 12,179.02

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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.