Home / 15,509.25-23,263.92-5,121.81

Finding the Fourth Proportional to 15,509.25, 23,263.92 and 5,121.81

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Solution

The fourth proportional to 15,509.25, 23,263.92 and 5,121.81 is: 7,682.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,509.25 : 23,263.92 = 5,121.81 : x
  2. Step 2: Convert to fraction form
    15,509.25/23,263.92 = 5,121.81/x
  3. Step 3: Cross multiply
    15,509.25x = 23,263.92 × 5,121.81
  4. Step 4: Simplify right side
    15,509.25x = 119,153,378.10
  5. Step 5: Solve for x
    x = 119,153,378.10/15,509.25
  6. Step 6: Final answer
    x = 7,682.73

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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.