Home / 11,773.35-16,243.74-9,780.75

Finding the Fourth Proportional to 11,773.35, 16,243.74 and 9,780.75

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Solution

The fourth proportional to 11,773.35, 16,243.74 and 9,780.75 is: 13,494.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,773.35 : 16,243.74 = 9,780.75 : x
  2. Step 2: Convert to fraction form
    11,773.35/16,243.74 = 9,780.75/x
  3. Step 3: Cross multiply
    11,773.35x = 16,243.74 × 9,780.75
  4. Step 4: Simplify right side
    11,773.35x = 158,875,960.01
  5. Step 5: Solve for x
    x = 158,875,960.01/11,773.35
  6. Step 6: Final answer
    x = 13,494.54

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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.