Home / 11,085.68-16,631.40-5,538.80

Finding the Fourth Proportional to 11,085.68, 16,631.40 and 5,538.80

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Solution

The fourth proportional to 11,085.68, 16,631.40 and 5,538.80 is: 8,309.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,085.68 : 16,631.40 = 5,538.80 : x
  2. Step 2: Convert to fraction form
    11,085.68/16,631.40 = 5,538.80/x
  3. Step 3: Cross multiply
    11,085.68x = 16,631.40 × 5,538.80
  4. Step 4: Simplify right side
    11,085.68x = 92,118,060.67
  5. Step 5: Solve for x
    x = 92,118,060.67/11,085.68
  6. Step 6: Final answer
    x = 8,309.64

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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.