Home / 11,931.36-17,902.77-4,916.49

Finding the Fourth Proportional to 11,931.36, 17,902.77 and 4,916.49

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Solution

The fourth proportional to 11,931.36, 17,902.77 and 4,916.49 is: 7,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.36 : 17,902.77 = 4,916.49 : x
  2. Step 2: Convert to fraction form
    11,931.36/17,902.77 = 4,916.49/x
  3. Step 3: Cross multiply
    11,931.36x = 17,902.77 × 4,916.49
  4. Step 4: Simplify right side
    11,931.36x = 88,018,789.68
  5. Step 5: Solve for x
    x = 88,018,789.68/11,931.36
  6. Step 6: Final answer
    x = 7,377.10

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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.