Home / 11,240.49-16,855.34-5,312.43

Finding the Fourth Proportional to 11,240.49, 16,855.34 and 5,312.43

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Solution

The fourth proportional to 11,240.49, 16,855.34 and 5,312.43 is: 7,966.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240.49 : 16,855.34 = 5,312.43 : x
  2. Step 2: Convert to fraction form
    11,240.49/16,855.34 = 5,312.43/x
  3. Step 3: Cross multiply
    11,240.49x = 16,855.34 × 5,312.43
  4. Step 4: Simplify right side
    11,240.49x = 89,542,787.31
  5. Step 5: Solve for x
    x = 89,542,787.31/11,240.49
  6. Step 6: Final answer
    x = 7,966.09

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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.