Home / 10,116.58-13,961.28-8,435.17

Finding the Fourth Proportional to 10,116.58, 13,961.28 and 8,435.17

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Solution

The fourth proportional to 10,116.58, 13,961.28 and 8,435.17 is: 11,640.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,116.58 : 13,961.28 = 8,435.17 : x
  2. Step 2: Convert to fraction form
    10,116.58/13,961.28 = 8,435.17/x
  3. Step 3: Cross multiply
    10,116.58x = 13,961.28 × 8,435.17
  4. Step 4: Simplify right side
    10,116.58x = 117,765,770.22
  5. Step 5: Solve for x
    x = 117,765,770.22/10,116.58
  6. Step 6: Final answer
    x = 11,640.87

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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.