Home / 8,964.14-13,445.80-3,420.09

Finding the Fourth Proportional to 8,964.14, 13,445.80 and 3,420.09

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Solution

The fourth proportional to 8,964.14, 13,445.80 and 3,420.09 is: 5,129.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.14 : 13,445.80 = 3,420.09 : x
  2. Step 2: Convert to fraction form
    8,964.14/13,445.80 = 3,420.09/x
  3. Step 3: Cross multiply
    8,964.14x = 13,445.80 × 3,420.09
  4. Step 4: Simplify right side
    8,964.14x = 45,985,837.57
  5. Step 5: Solve for x
    x = 45,985,837.57/8,964.14
  6. Step 6: Final answer
    x = 5,129.98

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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.