Home / 7,276.09-10,911.30-3,118.09

Finding the Fourth Proportional to 7,276.09, 10,911.30 and 3,118.09

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Solution

The fourth proportional to 7,276.09, 10,911.30 and 3,118.09 is: 4,675.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.09 : 10,911.30 = 3,118.09 : x
  2. Step 2: Convert to fraction form
    7,276.09/10,911.30 = 3,118.09/x
  3. Step 3: Cross multiply
    7,276.09x = 10,911.30 × 3,118.09
  4. Step 4: Simplify right side
    7,276.09x = 34,022,415.42
  5. Step 5: Solve for x
    x = 34,022,415.42/7,276.09
  6. Step 6: Final answer
    x = 4,675.92

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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.