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Finding the Fourth Proportional to 16,953.86, 23,394.87 and 9,880.94

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Solution

The fourth proportional to 16,953.86, 23,394.87 and 9,880.94 is: 13,634.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,953.86 : 23,394.87 = 9,880.94 : x
  2. Step 2: Convert to fraction form
    16,953.86/23,394.87 = 9,880.94/x
  3. Step 3: Cross multiply
    16,953.86x = 23,394.87 × 9,880.94
  4. Step 4: Simplify right side
    16,953.86x = 231,163,189.80
  5. Step 5: Solve for x
    x = 231,163,189.80/16,953.86
  6. Step 6: Final answer
    x = 13,634.85

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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.