Home / 11,568.25-15,959.19-7,090.30

Finding the Fourth Proportional to 11,568.25, 15,959.19 and 7,090.30

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Solution

The fourth proportional to 11,568.25, 15,959.19 and 7,090.30 is: 9,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,568.25 : 15,959.19 = 7,090.30 : x
  2. Step 2: Convert to fraction form
    11,568.25/15,959.19 = 7,090.30/x
  3. Step 3: Cross multiply
    11,568.25x = 15,959.19 × 7,090.30
  4. Step 4: Simplify right side
    11,568.25x = 113,155,444.86
  5. Step 5: Solve for x
    x = 113,155,444.86/11,568.25
  6. Step 6: Final answer
    x = 9,781.55

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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.