Home / 13,223.76-18,249.30-7,255.65

Finding the Fourth Proportional to 13,223.76, 18,249.30 and 7,255.65

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Solution

The fourth proportional to 13,223.76, 18,249.30 and 7,255.65 is: 10,013.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.76 : 18,249.30 = 7,255.65 : x
  2. Step 2: Convert to fraction form
    13,223.76/18,249.30 = 7,255.65/x
  3. Step 3: Cross multiply
    13,223.76x = 18,249.30 × 7,255.65
  4. Step 4: Simplify right side
    13,223.76x = 132,410,533.55
  5. Step 5: Solve for x
    x = 132,410,533.55/13,223.76
  6. Step 6: Final answer
    x = 10,013.08

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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.