Home / 15,773.19-21,766.62-8,699.73

Finding the Fourth Proportional to 15,773.19, 21,766.62 and 8,699.73

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Solution

The fourth proportional to 15,773.19, 21,766.62 and 8,699.73 is: 12,005.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,773.19 : 21,766.62 = 8,699.73 : x
  2. Step 2: Convert to fraction form
    15,773.19/21,766.62 = 8,699.73/x
  3. Step 3: Cross multiply
    15,773.19x = 21,766.62 × 8,699.73
  4. Step 4: Simplify right side
    15,773.19x = 189,363,717.01
  5. Step 5: Solve for x
    x = 189,363,717.01/15,773.19
  6. Step 6: Final answer
    x = 12,005.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.