Home / 19,126.75-28,690.08-5,086.77

Finding the Fourth Proportional to 19,126.75, 28,690.08 and 5,086.77

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Solution

The fourth proportional to 19,126.75, 28,690.08 and 5,086.77 is: 7,630.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.75 : 28,690.08 = 5,086.77 : x
  2. Step 2: Convert to fraction form
    19,126.75/28,690.08 = 5,086.77/x
  3. Step 3: Cross multiply
    19,126.75x = 28,690.08 × 5,086.77
  4. Step 4: Simplify right side
    19,126.75x = 145,939,838.24
  5. Step 5: Solve for x
    x = 145,939,838.24/19,126.75
  6. Step 6: Final answer
    x = 7,630.14

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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.