Home / 15,618.25-23,429.81-5,085.79

Finding the Fourth Proportional to 15,618.25, 23,429.81 and 5,085.79

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Solution

The fourth proportional to 15,618.25, 23,429.81 and 5,085.79 is: 7,629.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.25 : 23,429.81 = 5,085.79 : x
  2. Step 2: Convert to fraction form
    15,618.25/23,429.81 = 5,085.79/x
  3. Step 3: Cross multiply
    15,618.25x = 23,429.81 × 5,085.79
  4. Step 4: Simplify right side
    15,618.25x = 119,158,976.25
  5. Step 5: Solve for x
    x = 119,158,976.25/15,618.25
  6. Step 6: Final answer
    x = 7,629.47

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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.