Home / 15,467.54-21,345.33-8,394.02

Finding the Fourth Proportional to 15,467.54, 21,345.33 and 8,394.02

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Solution

The fourth proportional to 15,467.54, 21,345.33 and 8,394.02 is: 11,583.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,467.54 : 21,345.33 = 8,394.02 : x
  2. Step 2: Convert to fraction form
    15,467.54/21,345.33 = 8,394.02/x
  3. Step 3: Cross multiply
    15,467.54x = 21,345.33 × 8,394.02
  4. Step 4: Simplify right side
    15,467.54x = 179,173,020.20
  5. Step 5: Solve for x
    x = 179,173,020.20/15,467.54
  6. Step 6: Final answer
    x = 11,583.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.