Home / 10,890.97-16,314.58-9,217.92

Finding the Fourth Proportional to 10,890.97, 16,314.58 and 9,217.92

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Solution

The fourth proportional to 10,890.97, 16,314.58 and 9,217.92 is: 13,808.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.97 : 16,314.58 = 9,217.92 : x
  2. Step 2: Convert to fraction form
    10,890.97/16,314.58 = 9,217.92/x
  3. Step 3: Cross multiply
    10,890.97x = 16,314.58 × 9,217.92
  4. Step 4: Simplify right side
    10,890.97x = 150,386,493.27
  5. Step 5: Solve for x
    x = 150,386,493.27/10,890.97
  6. Step 6: Final answer
    x = 13,808.37

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1.5x scale

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.