Home / 11,291.25-15,581.90-6,255.48

Finding the Fourth Proportional to 11,291.25, 15,581.90 and 6,255.48

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Solution

The fourth proportional to 11,291.25, 15,581.90 and 6,255.48 is: 8,632.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.25 : 15,581.90 = 6,255.48 : x
  2. Step 2: Convert to fraction form
    11,291.25/15,581.90 = 6,255.48/x
  3. Step 3: Cross multiply
    11,291.25x = 15,581.90 × 6,255.48
  4. Step 4: Simplify right side
    11,291.25x = 97,472,232.53
  5. Step 5: Solve for x
    x = 97,472,232.53/11,291.25
  6. Step 6: Final answer
    x = 8,632.55

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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.