Home / 8,375.12-11,561.64-5,235.92

Finding the Fourth Proportional to 8,375.12, 11,561.64 and 5,235.92

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Solution

The fourth proportional to 8,375.12, 11,561.64 and 5,235.92 is: 7,228.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.12 : 11,561.64 = 5,235.92 : x
  2. Step 2: Convert to fraction form
    8,375.12/11,561.64 = 5,235.92/x
  3. Step 3: Cross multiply
    8,375.12x = 11,561.64 × 5,235.92
  4. Step 4: Simplify right side
    8,375.12x = 60,535,822.11
  5. Step 5: Solve for x
    x = 60,535,822.11/8,375.12
  6. Step 6: Final answer
    x = 7,228.05

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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.