Home / 13,392.23-18,443.78-13,101.66

Finding the Fourth Proportional to 13,392.23, 18,443.78 and 13,101.66

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Solution

The fourth proportional to 13,392.23, 18,443.78 and 13,101.66 is: 18,043.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.23 : 18,443.78 = 13,101.66 : x
  2. Step 2: Convert to fraction form
    13,392.23/18,443.78 = 13,101.66/x
  3. Step 3: Cross multiply
    13,392.23x = 18,443.78 × 13,101.66
  4. Step 4: Simplify right side
    13,392.23x = 241,644,069.17
  5. Step 5: Solve for x
    x = 241,644,069.17/13,392.23
  6. Step 6: Final answer
    x = 18,043.61

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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.