Home / 10,958.28-16,431.56-5,687.98

Finding the Fourth Proportional to 10,958.28, 16,431.56 and 5,687.98

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Solution

The fourth proportional to 10,958.28, 16,431.56 and 5,687.98 is: 8,528.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.28 : 16,431.56 = 5,687.98 : x
  2. Step 2: Convert to fraction form
    10,958.28/16,431.56 = 5,687.98/x
  3. Step 3: Cross multiply
    10,958.28x = 16,431.56 × 5,687.98
  4. Step 4: Simplify right side
    10,958.28x = 93,462,384.65
  5. Step 5: Solve for x
    x = 93,462,384.65/10,958.28
  6. Step 6: Final answer
    x = 8,528.93

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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.