Home / 11,987.15-16,540.90-6,950.32

Finding the Fourth Proportional to 11,987.15, 16,540.90 and 6,950.32

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Solution

The fourth proportional to 11,987.15, 16,540.90 and 6,950.32 is: 9,590.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.15 : 16,540.90 = 6,950.32 : x
  2. Step 2: Convert to fraction form
    11,987.15/16,540.90 = 6,950.32/x
  3. Step 3: Cross multiply
    11,987.15x = 16,540.90 × 6,950.32
  4. Step 4: Simplify right side
    11,987.15x = 114,964,548.09
  5. Step 5: Solve for x
    x = 114,964,548.09/11,987.15
  6. Step 6: Final answer
    x = 9,590.65

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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.