Home / 11,991.68-16,547.88-6,613.96

Finding the Fourth Proportional to 11,991.68, 16,547.88 and 6,613.96

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Solution

The fourth proportional to 11,991.68, 16,547.88 and 6,613.96 is: 9,126.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991.68 : 16,547.88 = 6,613.96 : x
  2. Step 2: Convert to fraction form
    11,991.68/16,547.88 = 6,613.96/x
  3. Step 3: Cross multiply
    11,991.68x = 16,547.88 × 6,613.96
  4. Step 4: Simplify right side
    11,991.68x = 109,447,016.40
  5. Step 5: Solve for x
    x = 109,447,016.40/11,991.68
  6. Step 6: Final answer
    x = 9,126.91

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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.