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Finding the Fourth Proportional to 11,423, 17,134.50 and 4,497.50

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Solution

The fourth proportional to 11,423, 17,134.50 and 4,497.50 is: 6,746.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,423 : 17,134.50 = 4,497.50 : x
  2. Step 2: Convert to fraction form
    11,423/17,134.50 = 4,497.50/x
  3. Step 3: Cross multiply
    11,423x = 17,134.50 × 4,497.50
  4. Step 4: Simplify right side
    11,423x = 77,062,413.75
  5. Step 5: Solve for x
    x = 77,062,413.75/11,423
  6. Step 6: Final answer
    x = 6,746.25

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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.