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Finding the Fourth Proportional to 13,283, 18,330.54 and 7,395

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Solution

The fourth proportional to 13,283, 18,330.54 and 7,395 is: 10,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283 : 18,330.54 = 7,395 : x
  2. Step 2: Convert to fraction form
    13,283/18,330.54 = 7,395/x
  3. Step 3: Cross multiply
    13,283x = 18,330.54 × 7,395
  4. Step 4: Simplify right side
    13,283x = 135,554,343.30
  5. Step 5: Solve for x
    x = 135,554,343.30/13,283
  6. Step 6: Final answer
    x = 10,205.10

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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.