Home / 15,141.60-20,887.56-8,850.33

Finding the Fourth Proportional to 15,141.60, 20,887.56 and 8,850.33

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Solution

The fourth proportional to 15,141.60, 20,887.56 and 8,850.33 is: 12,208.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,141.60 : 20,887.56 = 8,850.33 : x
  2. Step 2: Convert to fraction form
    15,141.60/20,887.56 = 8,850.33/x
  3. Step 3: Cross multiply
    15,141.60x = 20,887.56 × 8,850.33
  4. Step 4: Simplify right side
    15,141.60x = 184,861,798.89
  5. Step 5: Solve for x
    x = 184,861,798.89/15,141.60
  6. Step 6: Final answer
    x = 12,208.87

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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.