Home / 11,312.89-16,970.04-3,916.36

Finding the Fourth Proportional to 11,312.89, 16,970.04 and 3,916.36

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Solution

The fourth proportional to 11,312.89, 16,970.04 and 3,916.36 is: 5,874.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.89 : 16,970.04 = 3,916.36 : x
  2. Step 2: Convert to fraction form
    11,312.89/16,970.04 = 3,916.36/x
  3. Step 3: Cross multiply
    11,312.89x = 16,970.04 × 3,916.36
  4. Step 4: Simplify right side
    11,312.89x = 66,460,785.85
  5. Step 5: Solve for x
    x = 66,460,785.85/11,312.89
  6. Step 6: Final answer
    x = 5,874.78

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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.