Home / 11,259.88-15,540.90-6,785.32

Finding the Fourth Proportional to 11,259.88, 15,540.90 and 6,785.32

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Solution

The fourth proportional to 11,259.88, 15,540.90 and 6,785.32 is: 9,365.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,259.88 : 15,540.90 = 6,785.32 : x
  2. Step 2: Convert to fraction form
    11,259.88/15,540.90 = 6,785.32/x
  3. Step 3: Cross multiply
    11,259.88x = 15,540.90 × 6,785.32
  4. Step 4: Simplify right side
    11,259.88x = 105,449,979.59
  5. Step 5: Solve for x
    x = 105,449,979.59/11,259.88
  6. Step 6: Final answer
    x = 9,365.11

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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.