Home / 8,622.58-12,933.91-3,428.47

Finding the Fourth Proportional to 8,622.58, 12,933.91 and 3,428.47

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Solution

The fourth proportional to 8,622.58, 12,933.91 and 3,428.47 is: 5,142.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.58 : 12,933.91 = 3,428.47 : x
  2. Step 2: Convert to fraction form
    8,622.58/12,933.91 = 3,428.47/x
  3. Step 3: Cross multiply
    8,622.58x = 12,933.91 × 3,428.47
  4. Step 4: Simplify right side
    8,622.58x = 44,343,522.42
  5. Step 5: Solve for x
    x = 44,343,522.42/8,622.58
  6. Step 6: Final answer
    x = 5,142.72

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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.