Home / 8,425.90-12,638.34-2,582.50

Finding the Fourth Proportional to 8,425.90, 12,638.34 and 2,582.50

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Solution

The fourth proportional to 8,425.90, 12,638.34 and 2,582.50 is: 3,873.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.90 : 12,638.34 = 2,582.50 : x
  2. Step 2: Convert to fraction form
    8,425.90/12,638.34 = 2,582.50/x
  3. Step 3: Cross multiply
    8,425.90x = 12,638.34 × 2,582.50
  4. Step 4: Simplify right side
    8,425.90x = 32,638,513.05
  5. Step 5: Solve for x
    x = 32,638,513.05/8,425.90
  6. Step 6: Final answer
    x = 3,873.59

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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.