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Finding the Fourth Proportional to 8,393.86, 12,588.54 and 4,002.58

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Solution

The fourth proportional to 8,393.86, 12,588.54 and 4,002.58 is: 6,002.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.86 : 12,588.54 = 4,002.58 : x
  2. Step 2: Convert to fraction form
    8,393.86/12,588.54 = 4,002.58/x
  3. Step 3: Cross multiply
    8,393.86x = 12,588.54 × 4,002.58
  4. Step 4: Simplify right side
    8,393.86x = 50,386,638.43
  5. Step 5: Solve for x
    x = 50,386,638.43/8,393.86
  6. Step 6: Final answer
    x = 6,002.80

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1.5x scale

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.