Home / 8,424.15-12,637.85-2,580.81

Finding the Fourth Proportional to 8,424.15, 12,637.85 and 2,580.81

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Solution

The fourth proportional to 8,424.15, 12,637.85 and 2,580.81 is: 3,871.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.15 : 12,637.85 = 2,580.81 : x
  2. Step 2: Convert to fraction form
    8,424.15/12,637.85 = 2,580.81/x
  3. Step 3: Cross multiply
    8,424.15x = 12,637.85 × 2,580.81
  4. Step 4: Simplify right side
    8,424.15x = 32,615,876.75
  5. Step 5: Solve for x
    x = 32,615,876.75/8,424.15
  6. Step 6: Final answer
    x = 3,871.71

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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.