Home / 8,913.78-13,366.62-5,216.94

Finding the Fourth Proportional to 8,913.78, 13,366.62 and 5,216.94

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Solution

The fourth proportional to 8,913.78, 13,366.62 and 5,216.94 is: 7,823.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.78 : 13,366.62 = 5,216.94 : x
  2. Step 2: Convert to fraction form
    8,913.78/13,366.62 = 5,216.94/x
  3. Step 3: Cross multiply
    8,913.78x = 13,366.62 × 5,216.94
  4. Step 4: Simplify right side
    8,913.78x = 69,732,854.54
  5. Step 5: Solve for x
    x = 69,732,854.54/8,913.78
  6. Step 6: Final answer
    x = 7,823.04

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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.