Home / 8,818.34-13,228.74-2,578.80

Finding the Fourth Proportional to 8,818.34, 13,228.74 and 2,578.80

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Solution

The fourth proportional to 8,818.34, 13,228.74 and 2,578.80 is: 3,868.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.34 : 13,228.74 = 2,578.80 : x
  2. Step 2: Convert to fraction form
    8,818.34/13,228.74 = 2,578.80/x
  3. Step 3: Cross multiply
    8,818.34x = 13,228.74 × 2,578.80
  4. Step 4: Simplify right side
    8,818.34x = 34,114,274.71
  5. Step 5: Solve for x
    x = 34,114,274.71/8,818.34
  6. Step 6: Final answer
    x = 3,868.56

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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.