Home / 11,191-16,775.54-4,621.76

Finding the Fourth Proportional to 11,191, 16,775.54 and 4,621.76

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Solution

The fourth proportional to 11,191, 16,775.54 and 4,621.76 is: 6,928.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191 : 16,775.54 = 4,621.76 : x
  2. Step 2: Convert to fraction form
    11,191/16,775.54 = 4,621.76/x
  3. Step 3: Cross multiply
    11,191x = 16,775.54 × 4,621.76
  4. Step 4: Simplify right side
    11,191x = 77,532,519.75
  5. Step 5: Solve for x
    x = 77,532,519.75/11,191
  6. Step 6: Final answer
    x = 6,928.11

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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.