Home / 13,126.80-19,690.04-3,266.16

Finding the Fourth Proportional to 13,126.80, 19,690.04 and 3,266.16

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Solution

The fourth proportional to 13,126.80, 19,690.04 and 3,266.16 is: 4,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.80 : 19,690.04 = 3,266.16 : x
  2. Step 2: Convert to fraction form
    13,126.80/19,690.04 = 3,266.16/x
  3. Step 3: Cross multiply
    13,126.80x = 19,690.04 × 3,266.16
  4. Step 4: Simplify right side
    13,126.80x = 64,310,821.05
  5. Step 5: Solve for x
    x = 64,310,821.05/13,126.80
  6. Step 6: Final answer
    x = 4,899.20

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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.