Home / 10,719.75-16,080.06-2,928.54

Finding the Fourth Proportional to 10,719.75, 16,080.06 and 2,928.54

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Solution

The fourth proportional to 10,719.75, 16,080.06 and 2,928.54 is: 4,392.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.75 : 16,080.06 = 2,928.54 : x
  2. Step 2: Convert to fraction form
    10,719.75/16,080.06 = 2,928.54/x
  3. Step 3: Cross multiply
    10,719.75x = 16,080.06 × 2,928.54
  4. Step 4: Simplify right side
    10,719.75x = 47,091,098.91
  5. Step 5: Solve for x
    x = 47,091,098.91/10,719.75
  6. Step 6: Final answer
    x = 4,392.93

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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.