Home / 11,990.66-16,547.20-6,685.82

Finding the Fourth Proportional to 11,990.66, 16,547.20 and 6,685.82

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Solution

The fourth proportional to 11,990.66, 16,547.20 and 6,685.82 is: 9,226.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.66 : 16,547.20 = 6,685.82 : x
  2. Step 2: Convert to fraction form
    11,990.66/16,547.20 = 6,685.82/x
  3. Step 3: Cross multiply
    11,990.66x = 16,547.20 × 6,685.82
  4. Step 4: Simplify right side
    11,990.66x = 110,631,600.70
  5. Step 5: Solve for x
    x = 110,631,600.70/11,990.66
  6. Step 6: Final answer
    x = 9,226.48

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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.