Home / 11,217.29-15,479.75-6,181.38

Finding the Fourth Proportional to 11,217.29, 15,479.75 and 6,181.38

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Solution

The fourth proportional to 11,217.29, 15,479.75 and 6,181.38 is: 8,530.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.29 : 15,479.75 = 6,181.38 : x
  2. Step 2: Convert to fraction form
    11,217.29/15,479.75 = 6,181.38/x
  3. Step 3: Cross multiply
    11,217.29x = 15,479.75 × 6,181.38
  4. Step 4: Simplify right side
    11,217.29x = 95,686,232.51
  5. Step 5: Solve for x
    x = 95,686,232.51/11,217.29
  6. Step 6: Final answer
    x = 8,530.25

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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.