Home / 11,005.44-15,188.56-6,288.82

Finding the Fourth Proportional to 11,005.44, 15,188.56 and 6,288.82

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Solution

The fourth proportional to 11,005.44, 15,188.56 and 6,288.82 is: 8,679.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.44 : 15,188.56 = 6,288.82 : x
  2. Step 2: Convert to fraction form
    11,005.44/15,188.56 = 6,288.82/x
  3. Step 3: Cross multiply
    11,005.44x = 15,188.56 × 6,288.82
  4. Step 4: Simplify right side
    11,005.44x = 95,518,119.90
  5. Step 5: Solve for x
    x = 95,518,119.90/11,005.44
  6. Step 6: Final answer
    x = 8,679.17

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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.