Home / 11,322.90-16,985.10-3,002.80

Finding the Fourth Proportional to 11,322.90, 16,985.10 and 3,002.80

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Solution

The fourth proportional to 11,322.90, 16,985.10 and 3,002.80 is: 4,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,322.90 : 16,985.10 = 3,002.80 : x
  2. Step 2: Convert to fraction form
    11,322.90/16,985.10 = 3,002.80/x
  3. Step 3: Cross multiply
    11,322.90x = 16,985.10 × 3,002.80
  4. Step 4: Simplify right side
    11,322.90x = 51,002,858.28
  5. Step 5: Solve for x
    x = 51,002,858.28/11,322.90
  6. Step 6: Final answer
    x = 4,504.40

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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.