Home / 19,126.80-28,690.16-5,086.83

Finding the Fourth Proportional to 19,126.80, 28,690.16 and 5,086.83

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Solution

The fourth proportional to 19,126.80, 28,690.16 and 5,086.83 is: 7,630.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.80 : 28,690.16 = 5,086.83 : x
  2. Step 2: Convert to fraction form
    19,126.80/28,690.16 = 5,086.83/x
  3. Step 3: Cross multiply
    19,126.80x = 28,690.16 × 5,086.83
  4. Step 4: Simplify right side
    19,126.80x = 145,941,941.16
  5. Step 5: Solve for x
    x = 145,941,941.16/19,126.80
  6. Step 6: Final answer
    x = 7,630.23

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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.