Home / 13,249.85-18,285.23-7,281.98

Finding the Fourth Proportional to 13,249.85, 18,285.23 and 7,281.98

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Solution

The fourth proportional to 13,249.85, 18,285.23 and 7,281.98 is: 10,049.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.85 : 18,285.23 = 7,281.98 : x
  2. Step 2: Convert to fraction form
    13,249.85/18,285.23 = 7,281.98/x
  3. Step 3: Cross multiply
    13,249.85x = 18,285.23 × 7,281.98
  4. Step 4: Simplify right side
    13,249.85x = 133,152,605.93
  5. Step 5: Solve for x
    x = 133,152,605.93/13,249.85
  6. Step 6: Final answer
    x = 10,049.37

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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.