Home / 11,380.32-15,708.60-6,664.50

Finding the Fourth Proportional to 11,380.32, 15,708.60 and 6,664.50

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Solution

The fourth proportional to 11,380.32, 15,708.60 and 6,664.50 is: 9,199.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,380.32 : 15,708.60 = 6,664.50 : x
  2. Step 2: Convert to fraction form
    11,380.32/15,708.60 = 6,664.50/x
  3. Step 3: Cross multiply
    11,380.32x = 15,708.60 × 6,664.50
  4. Step 4: Simplify right side
    11,380.32x = 104,689,964.70
  5. Step 5: Solve for x
    x = 104,689,964.70/11,380.32
  6. Step 6: Final answer
    x = 9,199.21

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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.