Home / 11,187.40-16,776.84-3,288.24

Finding the Fourth Proportional to 11,187.40, 16,776.84 and 3,288.24

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Solution

The fourth proportional to 11,187.40, 16,776.84 and 3,288.24 is: 4,931.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.40 : 16,776.84 = 3,288.24 : x
  2. Step 2: Convert to fraction form
    11,187.40/16,776.84 = 3,288.24/x
  3. Step 3: Cross multiply
    11,187.40x = 16,776.84 × 3,288.24
  4. Step 4: Simplify right side
    11,187.40x = 55,166,276.36
  5. Step 5: Solve for x
    x = 55,166,276.36/11,187.40
  6. Step 6: Final answer
    x = 4,931.11

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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.