Home / 11,990.71-16,547.22-6,685.57

Finding the Fourth Proportional to 11,990.71, 16,547.22 and 6,685.57

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Solution

The fourth proportional to 11,990.71, 16,547.22 and 6,685.57 is: 9,226.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.71 : 16,547.22 = 6,685.57 : x
  2. Step 2: Convert to fraction form
    11,990.71/16,547.22 = 6,685.57/x
  3. Step 3: Cross multiply
    11,990.71x = 16,547.22 × 6,685.57
  4. Step 4: Simplify right side
    11,990.71x = 110,627,597.62
  5. Step 5: Solve for x
    x = 110,627,597.62/11,990.71
  6. Step 6: Final answer
    x = 9,226.11

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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.