Home / 8,423.90-12,637.47-2,580.56

Finding the Fourth Proportional to 8,423.90, 12,637.47 and 2,580.56

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Solution

The fourth proportional to 8,423.90, 12,637.47 and 2,580.56 is: 3,871.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.90 : 12,637.47 = 2,580.56 : x
  2. Step 2: Convert to fraction form
    8,423.90/12,637.47 = 2,580.56/x
  3. Step 3: Cross multiply
    8,423.90x = 12,637.47 × 2,580.56
  4. Step 4: Simplify right side
    8,423.90x = 32,611,749.58
  5. Step 5: Solve for x
    x = 32,611,749.58/8,423.90
  6. Step 6: Final answer
    x = 3,871.34

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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.