Home / 18,466.38-27,709.56-8,603.28

Finding the Fourth Proportional to 18,466.38, 27,709.56 and 8,603.28

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Solution

The fourth proportional to 18,466.38, 27,709.56 and 8,603.28 is: 12,909.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,466.38 : 27,709.56 = 8,603.28 : x
  2. Step 2: Convert to fraction form
    18,466.38/27,709.56 = 8,603.28/x
  3. Step 3: Cross multiply
    18,466.38x = 27,709.56 × 8,603.28
  4. Step 4: Simplify right side
    18,466.38x = 238,393,103.36
  5. Step 5: Solve for x
    x = 238,393,103.36/18,466.38
  6. Step 6: Final answer
    x = 12,909.57

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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.