Home / 10,238.25-15,357.36-3,218.77

Finding the Fourth Proportional to 10,238.25, 15,357.36 and 3,218.77

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Solution

The fourth proportional to 10,238.25, 15,357.36 and 3,218.77 is: 4,828.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,238.25 : 15,357.36 = 3,218.77 : x
  2. Step 2: Convert to fraction form
    10,238.25/15,357.36 = 3,218.77/x
  3. Step 3: Cross multiply
    10,238.25x = 15,357.36 × 3,218.77
  4. Step 4: Simplify right side
    10,238.25x = 49,431,840.91
  5. Step 5: Solve for x
    x = 49,431,840.91/10,238.25
  6. Step 6: Final answer
    x = 4,828.15

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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.