Home / 14,142.31-21,213.43-3,612.32

Finding the Fourth Proportional to 14,142.31, 21,213.43 and 3,612.32

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Solution

The fourth proportional to 14,142.31, 21,213.43 and 3,612.32 is: 5,418.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.31 : 21,213.43 = 3,612.32 : x
  2. Step 2: Convert to fraction form
    14,142.31/21,213.43 = 3,612.32/x
  3. Step 3: Cross multiply
    14,142.31x = 21,213.43 × 3,612.32
  4. Step 4: Simplify right side
    14,142.31x = 76,629,697.46
  5. Step 5: Solve for x
    x = 76,629,697.46/14,142.31
  6. Step 6: Final answer
    x = 5,418.47

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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.