Home / 14,000.81-21,001.22-3,611.75

Finding the Fourth Proportional to 14,000.81, 21,001.22 and 3,611.75

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Solution

The fourth proportional to 14,000.81, 21,001.22 and 3,611.75 is: 5,417.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.81 : 21,001.22 = 3,611.75 : x
  2. Step 2: Convert to fraction form
    14,000.81/21,001.22 = 3,611.75/x
  3. Step 3: Cross multiply
    14,000.81x = 21,001.22 × 3,611.75
  4. Step 4: Simplify right side
    14,000.81x = 75,851,138.28
  5. Step 5: Solve for x
    x = 75,851,138.28/14,000.81
  6. Step 6: Final answer
    x = 5,417.63

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