Home / 11,392.26-15,721.34-6,287.66

Finding the Fourth Proportional to 11,392.26, 15,721.34 and 6,287.66

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Solution

The fourth proportional to 11,392.26, 15,721.34 and 6,287.66 is: 8,676.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.26 : 15,721.34 = 6,287.66 : x
  2. Step 2: Convert to fraction form
    11,392.26/15,721.34 = 6,287.66/x
  3. Step 3: Cross multiply
    11,392.26x = 15,721.34 × 6,287.66
  4. Step 4: Simplify right side
    11,392.26x = 98,850,440.66
  5. Step 5: Solve for x
    x = 98,850,440.66/11,392.26
  6. Step 6: Final answer
    x = 8,676.98

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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.