Home / 11,102.32-15,321.36-6,321.70

Finding the Fourth Proportional to 11,102.32, 15,321.36 and 6,321.70

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Solution

The fourth proportional to 11,102.32, 15,321.36 and 6,321.70 is: 8,724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,102.32 : 15,321.36 = 6,321.70 : x
  2. Step 2: Convert to fraction form
    11,102.32/15,321.36 = 6,321.70/x
  3. Step 3: Cross multiply
    11,102.32x = 15,321.36 × 6,321.70
  4. Step 4: Simplify right side
    11,102.32x = 96,857,041.51
  5. Step 5: Solve for x
    x = 96,857,041.51/11,102.32
  6. Step 6: Final answer
    x = 8,724.04

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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.