Home / 12,808.38-19,199.38-4,908.75

Finding the Fourth Proportional to 12,808.38, 19,199.38 and 4,908.75

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Solution

The fourth proportional to 12,808.38, 19,199.38 and 4,908.75 is: 7,358.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.38 : 19,199.38 = 4,908.75 : x
  2. Step 2: Convert to fraction form
    12,808.38/19,199.38 = 4,908.75/x
  3. Step 3: Cross multiply
    12,808.38x = 19,199.38 × 4,908.75
  4. Step 4: Simplify right side
    12,808.38x = 94,244,989.51
  5. Step 5: Solve for x
    x = 94,244,989.51/12,808.38
  6. Step 6: Final answer
    x = 7,358.07

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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.