Home / 8,425.98-12,639-2,582.58

Finding the Fourth Proportional to 8,425.98, 12,639 and 2,582.58

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Solution

The fourth proportional to 8,425.98, 12,639 and 2,582.58 is: 3,873.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.98 : 12,639 = 2,582.58 : x
  2. Step 2: Convert to fraction form
    8,425.98/12,639 = 2,582.58/x
  3. Step 3: Cross multiply
    8,425.98x = 12,639 × 2,582.58
  4. Step 4: Simplify right side
    8,425.98x = 32,641,228.62
  5. Step 5: Solve for x
    x = 32,641,228.62/8,425.98
  6. Step 6: Final answer
    x = 3,873.88

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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.