Home / 16,972.14-23,421.12-9,418.44

Finding the Fourth Proportional to 16,972.14, 23,421.12 and 9,418.44

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Solution

The fourth proportional to 16,972.14, 23,421.12 and 9,418.44 is: 12,997.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,972.14 : 23,421.12 = 9,418.44 : x
  2. Step 2: Convert to fraction form
    16,972.14/23,421.12 = 9,418.44/x
  3. Step 3: Cross multiply
    16,972.14x = 23,421.12 × 9,418.44
  4. Step 4: Simplify right side
    16,972.14x = 220,590,413.45
  5. Step 5: Solve for x
    x = 220,590,413.45/16,972.14
  6. Step 6: Final answer
    x = 12,997.21

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1.5x scale

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.