Home / 14,213.89-21,314.36-8,372.17

Finding the Fourth Proportional to 14,213.89, 21,314.36 and 8,372.17

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Solution

The fourth proportional to 14,213.89, 21,314.36 and 8,372.17 is: 12,554.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,213.89 : 21,314.36 = 8,372.17 : x
  2. Step 2: Convert to fraction form
    14,213.89/21,314.36 = 8,372.17/x
  3. Step 3: Cross multiply
    14,213.89x = 21,314.36 × 8,372.17
  4. Step 4: Simplify right side
    14,213.89x = 178,447,403.50
  5. Step 5: Solve for x
    x = 178,447,403.50/14,213.89
  6. Step 6: Final answer
    x = 12,554.44

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Double scale
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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.