Home / 11,158.43-15,398.79-6,122.55

Finding the Fourth Proportional to 11,158.43, 15,398.79 and 6,122.55

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Solution

The fourth proportional to 11,158.43, 15,398.79 and 6,122.55 is: 8,449.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,158.43 : 15,398.79 = 6,122.55 : x
  2. Step 2: Convert to fraction form
    11,158.43/15,398.79 = 6,122.55/x
  3. Step 3: Cross multiply
    11,158.43x = 15,398.79 × 6,122.55
  4. Step 4: Simplify right side
    11,158.43x = 94,279,896.50
  5. Step 5: Solve for x
    x = 94,279,896.50/11,158.43
  6. Step 6: Final answer
    x = 8,449.21

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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.