Home / 11,991.36-16,547.94-6,686.76

Finding the Fourth Proportional to 11,991.36, 16,547.94 and 6,686.76

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Solution

The fourth proportional to 11,991.36, 16,547.94 and 6,686.76 is: 9,227.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991.36 : 16,547.94 = 6,686.76 : x
  2. Step 2: Convert to fraction form
    11,991.36/16,547.94 = 6,686.76/x
  3. Step 3: Cross multiply
    11,991.36x = 16,547.94 × 6,686.76
  4. Step 4: Simplify right side
    11,991.36x = 110,652,103.27
  5. Step 5: Solve for x
    x = 110,652,103.27/11,991.36
  6. Step 6: Final answer
    x = 9,227.65

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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.