Home / 10,285.09-14,183.48-8,691.77

Finding the Fourth Proportional to 10,285.09, 14,183.48 and 8,691.77

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Solution

The fourth proportional to 10,285.09, 14,183.48 and 8,691.77 is: 11,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.09 : 14,183.48 = 8,691.77 : x
  2. Step 2: Convert to fraction form
    10,285.09/14,183.48 = 8,691.77/x
  3. Step 3: Cross multiply
    10,285.09x = 14,183.48 × 8,691.77
  4. Step 4: Simplify right side
    10,285.09x = 123,279,603.15
  5. Step 5: Solve for x
    x = 123,279,603.15/10,285.09
  6. Step 6: Final answer
    x = 11,986.25

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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.