Home / 9,987.09-13,781.88-6,007.52

Finding the Fourth Proportional to 9,987.09, 13,781.88 and 6,007.52

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Solution

The fourth proportional to 9,987.09, 13,781.88 and 6,007.52 is: 8,290.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.09 : 13,781.88 = 6,007.52 : x
  2. Step 2: Convert to fraction form
    9,987.09/13,781.88 = 6,007.52/x
  3. Step 3: Cross multiply
    9,987.09x = 13,781.88 × 6,007.52
  4. Step 4: Simplify right side
    9,987.09x = 82,794,850.83
  5. Step 5: Solve for x
    x = 82,794,850.83/9,987.09
  6. Step 6: Final answer
    x = 8,290.19

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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.