Home / 13,115.92-19,673.88-4,906

Finding the Fourth Proportional to 13,115.92, 19,673.88 and 4,906

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Solution

The fourth proportional to 13,115.92, 19,673.88 and 4,906 is: 7,359

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.92 : 19,673.88 = 4,906 : x
  2. Step 2: Convert to fraction form
    13,115.92/19,673.88 = 4,906/x
  3. Step 3: Cross multiply
    13,115.92x = 19,673.88 × 4,906
  4. Step 4: Simplify right side
    13,115.92x = 96,520,055.28
  5. Step 5: Solve for x
    x = 96,520,055.28/13,115.92
  6. Step 6: Final answer
    x = 7,359

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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.