Home / 13,249.74-18,285.11-7,281.96

Finding the Fourth Proportional to 13,249.74, 18,285.11 and 7,281.96

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Solution

The fourth proportional to 13,249.74, 18,285.11 and 7,281.96 is: 10,049.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.74 : 18,285.11 = 7,281.96 : x
  2. Step 2: Convert to fraction form
    13,249.74/18,285.11 = 7,281.96/x
  3. Step 3: Cross multiply
    13,249.74x = 18,285.11 × 7,281.96
  4. Step 4: Simplify right side
    13,249.74x = 133,151,439.62
  5. Step 5: Solve for x
    x = 133,151,439.62/13,249.74
  6. Step 6: Final answer
    x = 10,049.36

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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.