Home / 11,247.26-15,522.43-8,409.74

Finding the Fourth Proportional to 11,247.26, 15,522.43 and 8,409.74

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Solution

The fourth proportional to 11,247.26, 15,522.43 and 8,409.74 is: 11,606.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,247.26 : 15,522.43 = 8,409.74 : x
  2. Step 2: Convert to fraction form
    11,247.26/15,522.43 = 8,409.74/x
  3. Step 3: Cross multiply
    11,247.26x = 15,522.43 × 8,409.74
  4. Step 4: Simplify right side
    11,247.26x = 130,539,600.47
  5. Step 5: Solve for x
    x = 130,539,600.47/11,247.26
  6. Step 6: Final answer
    x = 11,606.35

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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.