Home / 13,244.28-18,285.12-8,771.86

Finding the Fourth Proportional to 13,244.28, 18,285.12 and 8,771.86

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Solution

The fourth proportional to 13,244.28, 18,285.12 and 8,771.86 is: 12,110.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.28 : 18,285.12 = 8,771.86 : x
  2. Step 2: Convert to fraction form
    13,244.28/18,285.12 = 8,771.86/x
  3. Step 3: Cross multiply
    13,244.28x = 18,285.12 × 8,771.86
  4. Step 4: Simplify right side
    13,244.28x = 160,394,512.72
  5. Step 5: Solve for x
    x = 160,394,512.72/13,244.28
  6. Step 6: Final answer
    x = 12,110.47

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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.