Home / 18,960.62-26,122.93-13,212.66

Finding the Fourth Proportional to 18,960.62, 26,122.93 and 13,212.66

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Solution

The fourth proportional to 18,960.62, 26,122.93 and 13,212.66 is: 18,203.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,960.62 : 26,122.93 = 13,212.66 : x
  2. Step 2: Convert to fraction form
    18,960.62/26,122.93 = 13,212.66/x
  3. Step 3: Cross multiply
    18,960.62x = 26,122.93 × 13,212.66
  4. Step 4: Simplify right side
    18,960.62x = 345,153,359.26
  5. Step 5: Solve for x
    x = 345,153,359.26/18,960.62
  6. Step 6: Final answer
    x = 18,203.69

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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.