Home / 13,213.01-19,812.99-6,541.78

Finding the Fourth Proportional to 13,213.01, 19,812.99 and 6,541.78

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Solution

The fourth proportional to 13,213.01, 19,812.99 and 6,541.78 is: 9,809.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.01 : 19,812.99 = 6,541.78 : x
  2. Step 2: Convert to fraction form
    13,213.01/19,812.99 = 6,541.78/x
  3. Step 3: Cross multiply
    13,213.01x = 19,812.99 × 6,541.78
  4. Step 4: Simplify right side
    13,213.01x = 129,612,172.19
  5. Step 5: Solve for x
    x = 129,612,172.19/13,213.01
  6. Step 6: Final answer
    x = 9,809.44

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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.