Home / 8,426.79-12,634.11-2,580.21

Finding the Fourth Proportional to 8,426.79, 12,634.11 and 2,580.21

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Solution

The fourth proportional to 8,426.79, 12,634.11 and 2,580.21 is: 3,868.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.79 : 12,634.11 = 2,580.21 : x
  2. Step 2: Convert to fraction form
    8,426.79/12,634.11 = 2,580.21/x
  3. Step 3: Cross multiply
    8,426.79x = 12,634.11 × 2,580.21
  4. Step 4: Simplify right side
    8,426.79x = 32,598,656.96
  5. Step 5: Solve for x
    x = 32,598,656.96/8,426.79
  6. Step 6: Final answer
    x = 3,868.45

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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.