Home / 11,321.36-15,625.34-6,605.63

Finding the Fourth Proportional to 11,321.36, 15,625.34 and 6,605.63

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Solution

The fourth proportional to 11,321.36, 15,625.34 and 6,605.63 is: 9,116.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.36 : 15,625.34 = 6,605.63 : x
  2. Step 2: Convert to fraction form
    11,321.36/15,625.34 = 6,605.63/x
  3. Step 3: Cross multiply
    11,321.36x = 15,625.34 × 6,605.63
  4. Step 4: Simplify right side
    11,321.36x = 103,215,214.66
  5. Step 5: Solve for x
    x = 103,215,214.66/11,321.36
  6. Step 6: Final answer
    x = 9,116.86

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Double scale
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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.