Home / 13,249.43-18,284.55-7,281.25

Finding the Fourth Proportional to 13,249.43, 18,284.55 and 7,281.25

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Solution

The fourth proportional to 13,249.43, 18,284.55 and 7,281.25 is: 10,048.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.43 : 18,284.55 = 7,281.25 : x
  2. Step 2: Convert to fraction form
    13,249.43/18,284.55 = 7,281.25/x
  3. Step 3: Cross multiply
    13,249.43x = 18,284.55 × 7,281.25
  4. Step 4: Simplify right side
    13,249.43x = 133,134,379.69
  5. Step 5: Solve for x
    x = 133,134,379.69/13,249.43
  6. Step 6: Final answer
    x = 10,048.31

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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.