Home / 8,111.61-11,192.99-4,575.69

Finding the Fourth Proportional to 8,111.61, 11,192.99 and 4,575.69

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Solution

The fourth proportional to 8,111.61, 11,192.99 and 4,575.69 is: 6,313.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.61 : 11,192.99 = 4,575.69 : x
  2. Step 2: Convert to fraction form
    8,111.61/11,192.99 = 4,575.69/x
  3. Step 3: Cross multiply
    8,111.61x = 11,192.99 × 4,575.69
  4. Step 4: Simplify right side
    8,111.61x = 51,215,629.53
  5. Step 5: Solve for x
    x = 51,215,629.53/8,111.61
  6. Step 6: Final answer
    x = 6,313.87

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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.