Home / 15,467.81-21,346.92-8,755.59

Finding the Fourth Proportional to 15,467.81, 21,346.92 and 8,755.59

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Solution

The fourth proportional to 15,467.81, 21,346.92 and 8,755.59 is: 12,083.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,467.81 : 21,346.92 = 8,755.59 : x
  2. Step 2: Convert to fraction form
    15,467.81/21,346.92 = 8,755.59/x
  3. Step 3: Cross multiply
    15,467.81x = 21,346.92 × 8,755.59
  4. Step 4: Simplify right side
    15,467.81x = 186,904,879.28
  5. Step 5: Solve for x
    x = 186,904,879.28/15,467.81
  6. Step 6: Final answer
    x = 12,083.47

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1.5x scale

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.