Home / 11,871.28-17,800.34-4,856.21

Finding the Fourth Proportional to 11,871.28, 17,800.34 and 4,856.21

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Solution

The fourth proportional to 11,871.28, 17,800.34 and 4,856.21 is: 7,281.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,871.28 : 17,800.34 = 4,856.21 : x
  2. Step 2: Convert to fraction form
    11,871.28/17,800.34 = 4,856.21/x
  3. Step 3: Cross multiply
    11,871.28x = 17,800.34 × 4,856.21
  4. Step 4: Simplify right side
    11,871.28x = 86,442,164.83
  5. Step 5: Solve for x
    x = 86,442,164.83/11,871.28
  6. Step 6: Final answer
    x = 7,281.62

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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.