Home / 13,747.89-18,959.56-11,627.87

Finding the Fourth Proportional to 13,747.89, 18,959.56 and 11,627.87

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Solution

The fourth proportional to 13,747.89, 18,959.56 and 11,627.87 is: 16,035.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.89 : 18,959.56 = 11,627.87 : x
  2. Step 2: Convert to fraction form
    13,747.89/18,959.56 = 11,627.87/x
  3. Step 3: Cross multiply
    13,747.89x = 18,959.56 × 11,627.87
  4. Step 4: Simplify right side
    13,747.89x = 220,459,298.94
  5. Step 5: Solve for x
    x = 220,459,298.94/13,747.89
  6. Step 6: Final answer
    x = 16,035.86

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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.