Home / 13,249.93-18,285.24-7,281.75

Finding the Fourth Proportional to 13,249.93, 18,285.24 and 7,281.75

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Solution

The fourth proportional to 13,249.93, 18,285.24 and 7,281.75 is: 10,049.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.93 : 18,285.24 = 7,281.75 : x
  2. Step 2: Convert to fraction form
    13,249.93/18,285.24 = 7,281.75/x
  3. Step 3: Cross multiply
    13,249.93x = 18,285.24 × 7,281.75
  4. Step 4: Simplify right side
    13,249.93x = 133,148,546.37
  5. Step 5: Solve for x
    x = 133,148,546.37/13,249.93
  6. Step 6: Final answer
    x = 10,049.00

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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.