Home / 8,541.34-12,812.40-2,617.80

Finding the Fourth Proportional to 8,541.34, 12,812.40 and 2,617.80

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Solution

The fourth proportional to 8,541.34, 12,812.40 and 2,617.80 is: 3,926.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.34 : 12,812.40 = 2,617.80 : x
  2. Step 2: Convert to fraction form
    8,541.34/12,812.40 = 2,617.80/x
  3. Step 3: Cross multiply
    8,541.34x = 12,812.40 × 2,617.80
  4. Step 4: Simplify right side
    8,541.34x = 33,540,300.72
  5. Step 5: Solve for x
    x = 33,540,300.72/8,541.34
  6. Step 6: Final answer
    x = 3,926.82

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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.