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Finding the Fourth Proportional to 14,960.76, 20,642.22 and 8,997

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Solution

The fourth proportional to 14,960.76, 20,642.22 and 8,997 is: 12,413.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,960.76 : 20,642.22 = 8,997 : x
  2. Step 2: Convert to fraction form
    14,960.76/20,642.22 = 8,997/x
  3. Step 3: Cross multiply
    14,960.76x = 20,642.22 × 8,997
  4. Step 4: Simplify right side
    14,960.76x = 185,718,053.34
  5. Step 5: Solve for x
    x = 185,718,053.34/14,960.76
  6. Step 6: Final answer
    x = 12,413.68

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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.