Home / 7,547.09-10,414.78-4,189.73

Finding the Fourth Proportional to 7,547.09, 10,414.78 and 4,189.73

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Solution

The fourth proportional to 7,547.09, 10,414.78 and 4,189.73 is: 5,781.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.09 : 10,414.78 = 4,189.73 : x
  2. Step 2: Convert to fraction form
    7,547.09/10,414.78 = 4,189.73/x
  3. Step 3: Cross multiply
    7,547.09x = 10,414.78 × 4,189.73
  4. Step 4: Simplify right side
    7,547.09x = 43,635,116.21
  5. Step 5: Solve for x
    x = 43,635,116.21/7,547.09
  6. Step 6: Final answer
    x = 5,781.71

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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.