Home / 13,747.72-18,959.32-11,627.68

Finding the Fourth Proportional to 13,747.72, 18,959.32 and 11,627.68

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Solution

The fourth proportional to 13,747.72, 18,959.32 and 11,627.68 is: 16,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.72 : 18,959.32 = 11,627.68 : x
  2. Step 2: Convert to fraction form
    13,747.72/18,959.32 = 11,627.68/x
  3. Step 3: Cross multiply
    13,747.72x = 18,959.32 × 11,627.68
  4. Step 4: Simplify right side
    13,747.72x = 220,452,905.98
  5. Step 5: Solve for x
    x = 220,452,905.98/13,747.72
  6. Step 6: Final answer
    x = 16,035.60

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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.