Home / 8,720.49-13,069.89-4,274.51

Finding the Fourth Proportional to 8,720.49, 13,069.89 and 4,274.51

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Solution

The fourth proportional to 8,720.49, 13,069.89 and 4,274.51 is: 6,406.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.49 : 13,069.89 = 4,274.51 : x
  2. Step 2: Convert to fraction form
    8,720.49/13,069.89 = 4,274.51/x
  3. Step 3: Cross multiply
    8,720.49x = 13,069.89 × 4,274.51
  4. Step 4: Simplify right side
    8,720.49x = 55,867,310.15
  5. Step 5: Solve for x
    x = 55,867,310.15/8,720.49
  6. Step 6: Final answer
    x = 6,406.44

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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.