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Finding the Fourth Proportional to 16,365.62, 22,578.98 and 9,990.52

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Solution

The fourth proportional to 16,365.62, 22,578.98 and 9,990.52 is: 13,783.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,365.62 : 22,578.98 = 9,990.52 : x
  2. Step 2: Convert to fraction form
    16,365.62/22,578.98 = 9,990.52/x
  3. Step 3: Cross multiply
    16,365.62x = 22,578.98 × 9,990.52
  4. Step 4: Simplify right side
    16,365.62x = 225,575,751.27
  5. Step 5: Solve for x
    x = 225,575,751.27/16,365.62
  6. Step 6: Final answer
    x = 13,783.51

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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.