Home / 11,027.02-15,216.78-6,311.20

Finding the Fourth Proportional to 11,027.02, 15,216.78 and 6,311.20

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Solution

The fourth proportional to 11,027.02, 15,216.78 and 6,311.20 is: 8,709.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,027.02 : 15,216.78 = 6,311.20 : x
  2. Step 2: Convert to fraction form
    11,027.02/15,216.78 = 6,311.20/x
  3. Step 3: Cross multiply
    11,027.02x = 15,216.78 × 6,311.20
  4. Step 4: Simplify right side
    11,027.02x = 96,036,141.94
  5. Step 5: Solve for x
    x = 96,036,141.94/11,027.02
  6. Step 6: Final answer
    x = 8,709.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.