Home / 13,103.74-18,101.54-11,686.97

Finding the Fourth Proportional to 13,103.74, 18,101.54 and 11,686.97

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Solution

The fourth proportional to 13,103.74, 18,101.54 and 11,686.97 is: 16,144.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.74 : 18,101.54 = 11,686.97 : x
  2. Step 2: Convert to fraction form
    13,103.74/18,101.54 = 11,686.97/x
  3. Step 3: Cross multiply
    13,103.74x = 18,101.54 × 11,686.97
  4. Step 4: Simplify right side
    13,103.74x = 211,552,096.50
  5. Step 5: Solve for x
    x = 211,552,096.50/13,103.74
  6. Step 6: Final answer
    x = 16,144.41

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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.