Home / 13,255.21-18,291.49-7,285.73

Finding the Fourth Proportional to 13,255.21, 18,291.49 and 7,285.73

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Solution

The fourth proportional to 13,255.21, 18,291.49 and 7,285.73 is: 10,053.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.21 : 18,291.49 = 7,285.73 : x
  2. Step 2: Convert to fraction form
    13,255.21/18,291.49 = 7,285.73/x
  3. Step 3: Cross multiply
    13,255.21x = 18,291.49 × 7,285.73
  4. Step 4: Simplify right side
    13,255.21x = 133,266,850.66
  5. Step 5: Solve for x
    x = 133,266,850.66/13,255.21
  6. Step 6: Final answer
    x = 10,053.92

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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.