Home / 7,987.09-11,016.32-5,293.43

Finding the Fourth Proportional to 7,987.09, 11,016.32 and 5,293.43

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Solution

The fourth proportional to 7,987.09, 11,016.32 and 5,293.43 is: 7,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.09 : 11,016.32 = 5,293.43 : x
  2. Step 2: Convert to fraction form
    7,987.09/11,016.32 = 5,293.43/x
  3. Step 3: Cross multiply
    7,987.09x = 11,016.32 × 5,293.43
  4. Step 4: Simplify right side
    7,987.09x = 58,314,119.85
  5. Step 5: Solve for x
    x = 58,314,119.85/7,987.09
  6. Step 6: Final answer
    x = 7,301.05

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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.