Home / 19,645.50-29,480.08-7,166.61

Finding the Fourth Proportional to 19,645.50, 29,480.08 and 7,166.61

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Solution

The fourth proportional to 19,645.50, 29,480.08 and 7,166.61 is: 10,754.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,645.50 : 29,480.08 = 7,166.61 : x
  2. Step 2: Convert to fraction form
    19,645.50/29,480.08 = 7,166.61/x
  3. Step 3: Cross multiply
    19,645.50x = 29,480.08 × 7,166.61
  4. Step 4: Simplify right side
    19,645.50x = 211,272,236.13
  5. Step 5: Solve for x
    x = 211,272,236.13/19,645.50
  6. Step 6: Final answer
    x = 10,754.23

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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.