Home / 13,388.73-18,476.42-7,723.39

Finding the Fourth Proportional to 13,388.73, 18,476.42 and 7,723.39

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Solution

The fourth proportional to 13,388.73, 18,476.42 and 7,723.39 is: 10,658.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.73 : 18,476.42 = 7,723.39 : x
  2. Step 2: Convert to fraction form
    13,388.73/18,476.42 = 7,723.39/x
  3. Step 3: Cross multiply
    13,388.73x = 18,476.42 × 7,723.39
  4. Step 4: Simplify right side
    13,388.73x = 142,700,512.66
  5. Step 5: Solve for x
    x = 142,700,512.66/13,388.73
  6. Step 6: Final answer
    x = 10,658.26

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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.