Home / 8,320.05-12,467.12-5,235.57

Finding the Fourth Proportional to 8,320.05, 12,467.12 and 5,235.57

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Solution

The fourth proportional to 8,320.05, 12,467.12 and 5,235.57 is: 7,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.05 : 12,467.12 = 5,235.57 : x
  2. Step 2: Convert to fraction form
    8,320.05/12,467.12 = 5,235.57/x
  3. Step 3: Cross multiply
    8,320.05x = 12,467.12 × 5,235.57
  4. Step 4: Simplify right side
    8,320.05x = 65,272,453.28
  5. Step 5: Solve for x
    x = 65,272,453.28/8,320.05
  6. Step 6: Final answer
    x = 7,845.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.