Home / 9,431.52-13,015.50-5,239.77

Finding the Fourth Proportional to 9,431.52, 13,015.50 and 5,239.77

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Solution

The fourth proportional to 9,431.52, 13,015.50 and 5,239.77 is: 7,230.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.52 : 13,015.50 = 5,239.77 : x
  2. Step 2: Convert to fraction form
    9,431.52/13,015.50 = 5,239.77/x
  3. Step 3: Cross multiply
    9,431.52x = 13,015.50 × 5,239.77
  4. Step 4: Simplify right side
    9,431.52x = 68,198,226.44
  5. Step 5: Solve for x
    x = 68,198,226.44/9,431.52
  6. Step 6: Final answer
    x = 7,230.88

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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.