Home / 11,805.10-17,711.75-5,235.91

Finding the Fourth Proportional to 11,805.10, 17,711.75 and 5,235.91

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Solution

The fourth proportional to 11,805.10, 17,711.75 and 5,235.91 is: 7,855.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,805.10 : 17,711.75 = 5,235.91 : x
  2. Step 2: Convert to fraction form
    11,805.10/17,711.75 = 5,235.91/x
  3. Step 3: Cross multiply
    11,805.10x = 17,711.75 × 5,235.91
  4. Step 4: Simplify right side
    11,805.10x = 92,737,014.20
  5. Step 5: Solve for x
    x = 92,737,014.20/11,805.10
  6. Step 6: Final answer
    x = 7,855.68

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1.5x scale

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.