Home / 8,818.68-13,228.91-2,578.81

Finding the Fourth Proportional to 8,818.68, 13,228.91 and 2,578.81

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Solution

The fourth proportional to 8,818.68, 13,228.91 and 2,578.81 is: 3,868.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.68 : 13,228.91 = 2,578.81 : x
  2. Step 2: Convert to fraction form
    8,818.68/13,228.91 = 2,578.81/x
  3. Step 3: Cross multiply
    8,818.68x = 13,228.91 × 2,578.81
  4. Step 4: Simplify right side
    8,818.68x = 34,114,779.25
  5. Step 5: Solve for x
    x = 34,114,779.25/8,818.68
  6. Step 6: Final answer
    x = 3,868.47

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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.