Home / 12,104.14-18,155.58-7,109.26

Finding the Fourth Proportional to 12,104.14, 18,155.58 and 7,109.26

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Solution

The fourth proportional to 12,104.14, 18,155.58 and 7,109.26 is: 10,663.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,104.14 : 18,155.58 = 7,109.26 : x
  2. Step 2: Convert to fraction form
    12,104.14/18,155.58 = 7,109.26/x
  3. Step 3: Cross multiply
    12,104.14x = 18,155.58 × 7,109.26
  4. Step 4: Simplify right side
    12,104.14x = 129,072,738.67
  5. Step 5: Solve for x
    x = 129,072,738.67/12,104.14
  6. Step 6: Final answer
    x = 10,663.52

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.