Home / 9,902.14-13,664.36-5,425

Finding the Fourth Proportional to 9,902.14, 13,664.36 and 5,425

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Solution

The fourth proportional to 9,902.14, 13,664.36 and 5,425 is: 7,486.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,902.14 : 13,664.36 = 5,425 : x
  2. Step 2: Convert to fraction form
    9,902.14/13,664.36 = 5,425/x
  3. Step 3: Cross multiply
    9,902.14x = 13,664.36 × 5,425
  4. Step 4: Simplify right side
    9,902.14x = 74,129,153
  5. Step 5: Solve for x
    x = 74,129,153/9,902.14
  6. Step 6: Final answer
    x = 7,486.18

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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.