Home / 11,281.92-16,913.12-5,430.48

Finding the Fourth Proportional to 11,281.92, 16,913.12 and 5,430.48

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Solution

The fourth proportional to 11,281.92, 16,913.12 and 5,430.48 is: 8,141.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,281.92 : 16,913.12 = 5,430.48 : x
  2. Step 2: Convert to fraction form
    11,281.92/16,913.12 = 5,430.48/x
  3. Step 3: Cross multiply
    11,281.92x = 16,913.12 × 5,430.48
  4. Step 4: Simplify right side
    11,281.92x = 91,846,359.90
  5. Step 5: Solve for x
    x = 91,846,359.90/11,281.92
  6. Step 6: Final answer
    x = 8,141.02

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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.