Home / 15,349-21,172.98-10,042.60

Finding the Fourth Proportional to 15,349, 21,172.98 and 10,042.60

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Solution

The fourth proportional to 15,349, 21,172.98 and 10,042.60 is: 13,853.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349 : 21,172.98 = 10,042.60 : x
  2. Step 2: Convert to fraction form
    15,349/21,172.98 = 10,042.60/x
  3. Step 3: Cross multiply
    15,349x = 21,172.98 × 10,042.60
  4. Step 4: Simplify right side
    15,349x = 212,631,768.95
  5. Step 5: Solve for x
    x = 212,631,768.95/15,349
  6. Step 6: Final answer
    x = 13,853.13

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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.