Home / 8,718.87-13,076.33-2,478.74

Finding the Fourth Proportional to 8,718.87, 13,076.33 and 2,478.74

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Solution

The fourth proportional to 8,718.87, 13,076.33 and 2,478.74 is: 3,717.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.87 : 13,076.33 = 2,478.74 : x
  2. Step 2: Convert to fraction form
    8,718.87/13,076.33 = 2,478.74/x
  3. Step 3: Cross multiply
    8,718.87x = 13,076.33 × 2,478.74
  4. Step 4: Simplify right side
    8,718.87x = 32,412,744.45
  5. Step 5: Solve for x
    x = 32,412,744.45/8,718.87
  6. Step 6: Final answer
    x = 3,717.54

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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.