Home / 14,142.06-19,515.96-8,173.62

Finding the Fourth Proportional to 14,142.06, 19,515.96 and 8,173.62

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Solution

The fourth proportional to 14,142.06, 19,515.96 and 8,173.62 is: 11,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.06 : 19,515.96 = 8,173.62 : x
  2. Step 2: Convert to fraction form
    14,142.06/19,515.96 = 8,173.62/x
  3. Step 3: Cross multiply
    14,142.06x = 19,515.96 × 8,173.62
  4. Step 4: Simplify right side
    14,142.06x = 159,516,040.98
  5. Step 5: Solve for x
    x = 159,516,040.98/14,142.06
  6. Step 6: Final answer
    x = 11,279.55

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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.