Home / 13,907.74-19,181.52-12,225.57

Finding the Fourth Proportional to 13,907.74, 19,181.52 and 12,225.57

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Solution

The fourth proportional to 13,907.74, 19,181.52 and 12,225.57 is: 16,861.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.74 : 19,181.52 = 12,225.57 : x
  2. Step 2: Convert to fraction form
    13,907.74/19,181.52 = 12,225.57/x
  3. Step 3: Cross multiply
    13,907.74x = 19,181.52 × 12,225.57
  4. Step 4: Simplify right side
    13,907.74x = 234,505,015.47
  5. Step 5: Solve for x
    x = 234,505,015.47/13,907.74
  6. Step 6: Final answer
    x = 16,861.48

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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.