Home / 11,755.41-16,226.98-7,980.26

Finding the Fourth Proportional to 11,755.41, 16,226.98 and 7,980.26

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Solution

The fourth proportional to 11,755.41, 16,226.98 and 7,980.26 is: 11,015.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,755.41 : 16,226.98 = 7,980.26 : x
  2. Step 2: Convert to fraction form
    11,755.41/16,226.98 = 7,980.26/x
  3. Step 3: Cross multiply
    11,755.41x = 16,226.98 × 7,980.26
  4. Step 4: Simplify right side
    11,755.41x = 129,495,438.95
  5. Step 5: Solve for x
    x = 129,495,438.95/11,755.41
  6. Step 6: Final answer
    x = 11,015.82

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Half scale
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Double scale
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Similar ratio
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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.