Home / 8,541.72-12,812.85-3,611.52

Finding the Fourth Proportional to 8,541.72, 12,812.85 and 3,611.52

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Solution

The fourth proportional to 8,541.72, 12,812.85 and 3,611.52 is: 5,417.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.72 : 12,812.85 = 3,611.52 : x
  2. Step 2: Convert to fraction form
    8,541.72/12,812.85 = 3,611.52/x
  3. Step 3: Cross multiply
    8,541.72x = 12,812.85 × 3,611.52
  4. Step 4: Simplify right side
    8,541.72x = 46,273,864.03
  5. Step 5: Solve for x
    x = 46,273,864.03/8,541.72
  6. Step 6: Final answer
    x = 5,417.39

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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.