Home / 12,370.64-17,063.73-8,121.92

Finding the Fourth Proportional to 12,370.64, 17,063.73 and 8,121.92

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Solution

The fourth proportional to 12,370.64, 17,063.73 and 8,121.92 is: 11,203.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,370.64 : 17,063.73 = 8,121.92 : x
  2. Step 2: Convert to fraction form
    12,370.64/17,063.73 = 8,121.92/x
  3. Step 3: Cross multiply
    12,370.64x = 17,063.73 × 8,121.92
  4. Step 4: Simplify right side
    12,370.64x = 138,590,164.64
  5. Step 5: Solve for x
    x = 138,590,164.64/12,370.64
  6. Step 6: Final answer
    x = 11,203.16

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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.