Home / 19,164.87-28,745.01-5,125.95

Finding the Fourth Proportional to 19,164.87, 28,745.01 and 5,125.95

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Solution

The fourth proportional to 19,164.87, 28,745.01 and 5,125.95 is: 7,688.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,164.87 : 28,745.01 = 5,125.95 : x
  2. Step 2: Convert to fraction form
    19,164.87/28,745.01 = 5,125.95/x
  3. Step 3: Cross multiply
    19,164.87x = 28,745.01 × 5,125.95
  4. Step 4: Simplify right side
    19,164.87x = 147,345,484.01
  5. Step 5: Solve for x
    x = 147,345,484.01/19,164.87
  6. Step 6: Final answer
    x = 7,688.31

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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.