Home / 11,563.37-15,955.74-6,781.51

Finding the Fourth Proportional to 11,563.37, 15,955.74 and 6,781.51

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Solution

The fourth proportional to 11,563.37, 15,955.74 and 6,781.51 is: 9,357.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,563.37 : 15,955.74 = 6,781.51 : x
  2. Step 2: Convert to fraction form
    11,563.37/15,955.74 = 6,781.51/x
  3. Step 3: Cross multiply
    11,563.37x = 15,955.74 × 6,781.51
  4. Step 4: Simplify right side
    11,563.37x = 108,204,010.37
  5. Step 5: Solve for x
    x = 108,204,010.37/11,563.37
  6. Step 6: Final answer
    x = 9,357.48

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Half scale
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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.