Home / 14,446.32-21,659.76-6,128.16

Finding the Fourth Proportional to 14,446.32, 21,659.76 and 6,128.16

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Solution

The fourth proportional to 14,446.32, 21,659.76 and 6,128.16 is: 9,188.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,446.32 : 21,659.76 = 6,128.16 : x
  2. Step 2: Convert to fraction form
    14,446.32/21,659.76 = 6,128.16/x
  3. Step 3: Cross multiply
    14,446.32x = 21,659.76 × 6,128.16
  4. Step 4: Simplify right side
    14,446.32x = 132,734,474.84
  5. Step 5: Solve for x
    x = 132,734,474.84/14,446.32
  6. Step 6: Final answer
    x = 9,188.12

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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.