Home / 15,773.27-21,766.73-8,699.54

Finding the Fourth Proportional to 15,773.27, 21,766.73 and 8,699.54

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Solution

The fourth proportional to 15,773.27, 21,766.73 and 8,699.54 is: 12,005.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,773.27 : 21,766.73 = 8,699.54 : x
  2. Step 2: Convert to fraction form
    15,773.27/21,766.73 = 8,699.54/x
  3. Step 3: Cross multiply
    15,773.27x = 21,766.73 × 8,699.54
  4. Step 4: Simplify right side
    15,773.27x = 189,360,385.97
  5. Step 5: Solve for x
    x = 189,360,385.97/15,773.27
  6. Step 6: Final answer
    x = 12,005.15

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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.