Home / 8,498.94-12,731.90-4,218.58

Finding the Fourth Proportional to 8,498.94, 12,731.90 and 4,218.58

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Solution

The fourth proportional to 8,498.94, 12,731.90 and 4,218.58 is: 6,319.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,498.94 : 12,731.90 = 4,218.58 : x
  2. Step 2: Convert to fraction form
    8,498.94/12,731.90 = 4,218.58/x
  3. Step 3: Cross multiply
    8,498.94x = 12,731.90 × 4,218.58
  4. Step 4: Simplify right side
    8,498.94x = 53,710,538.70
  5. Step 5: Solve for x
    x = 53,710,538.70/8,498.94
  6. Step 6: Final answer
    x = 6,319.68

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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.