Home / 8,364.36-12,542.08-2,815.84

Finding the Fourth Proportional to 8,364.36, 12,542.08 and 2,815.84

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Solution

The fourth proportional to 8,364.36, 12,542.08 and 2,815.84 is: 4,222.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.36 : 12,542.08 = 2,815.84 : x
  2. Step 2: Convert to fraction form
    8,364.36/12,542.08 = 2,815.84/x
  3. Step 3: Cross multiply
    8,364.36x = 12,542.08 × 2,815.84
  4. Step 4: Simplify right side
    8,364.36x = 35,316,490.55
  5. Step 5: Solve for x
    x = 35,316,490.55/8,364.36
  6. Step 6: Final answer
    x = 4,222.26

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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.