Home / 10,991.30-16,467.63-9,247.79

Finding the Fourth Proportional to 10,991.30, 16,467.63 and 9,247.79

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Solution

The fourth proportional to 10,991.30, 16,467.63 and 9,247.79 is: 13,855.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.30 : 16,467.63 = 9,247.79 : x
  2. Step 2: Convert to fraction form
    10,991.30/16,467.63 = 9,247.79/x
  3. Step 3: Cross multiply
    10,991.30x = 16,467.63 × 9,247.79
  4. Step 4: Simplify right side
    10,991.30x = 152,289,184.04
  5. Step 5: Solve for x
    x = 152,289,184.04/10,991.30
  6. Step 6: Final answer
    x = 13,855.43

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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.