Home / 11,620.90-17,438.50-4,599.72

Finding the Fourth Proportional to 11,620.90, 17,438.50 and 4,599.72

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Solution

The fourth proportional to 11,620.90, 17,438.50 and 4,599.72 is: 6,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.90 : 17,438.50 = 4,599.72 : x
  2. Step 2: Convert to fraction form
    11,620.90/17,438.50 = 4,599.72/x
  3. Step 3: Cross multiply
    11,620.90x = 17,438.50 × 4,599.72
  4. Step 4: Simplify right side
    11,620.90x = 80,212,130.03
  5. Step 5: Solve for x
    x = 80,212,130.03/11,620.90
  6. Step 6: Final answer
    x = 6,902.40

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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.