Home / 11,987.01-16,542.15-6,682.16

Finding the Fourth Proportional to 11,987.01, 16,542.15 and 6,682.16

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Solution

The fourth proportional to 11,987.01, 16,542.15 and 6,682.16 is: 9,221.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.01 : 16,542.15 = 6,682.16 : x
  2. Step 2: Convert to fraction form
    11,987.01/16,542.15 = 6,682.16/x
  3. Step 3: Cross multiply
    11,987.01x = 16,542.15 × 6,682.16
  4. Step 4: Simplify right side
    11,987.01x = 110,537,309.34
  5. Step 5: Solve for x
    x = 110,537,309.34/11,987.01
  6. Step 6: Final answer
    x = 9,221.42

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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.