Home / 8,391.64-12,587.04-2,548.72

Finding the Fourth Proportional to 8,391.64, 12,587.04 and 2,548.72

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Solution

The fourth proportional to 8,391.64, 12,587.04 and 2,548.72 is: 3,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.64 : 12,587.04 = 2,548.72 : x
  2. Step 2: Convert to fraction form
    8,391.64/12,587.04 = 2,548.72/x
  3. Step 3: Cross multiply
    8,391.64x = 12,587.04 × 2,548.72
  4. Step 4: Simplify right side
    8,391.64x = 32,080,840.59
  5. Step 5: Solve for x
    x = 32,080,840.59/8,391.64
  6. Step 6: Final answer
    x = 3,822.95

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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.