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Finding the Fourth Proportional to 18,403, 27,603.88 and 5,923.74

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Solution

The fourth proportional to 18,403, 27,603.88 and 5,923.74 is: 8,885.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403 : 27,603.88 = 5,923.74 : x
  2. Step 2: Convert to fraction form
    18,403/27,603.88 = 5,923.74/x
  3. Step 3: Cross multiply
    18,403x = 27,603.88 × 5,923.74
  4. Step 4: Simplify right side
    18,403x = 163,518,208.11
  5. Step 5: Solve for x
    x = 163,518,208.11/18,403
  6. Step 6: Final answer
    x = 8,885.41

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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.