Home / 15,540.45-21,446.47-8,467.26

Finding the Fourth Proportional to 15,540.45, 21,446.47 and 8,467.26

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Solution

The fourth proportional to 15,540.45, 21,446.47 and 8,467.26 is: 11,685.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.45 : 21,446.47 = 8,467.26 : x
  2. Step 2: Convert to fraction form
    15,540.45/21,446.47 = 8,467.26/x
  3. Step 3: Cross multiply
    15,540.45x = 21,446.47 × 8,467.26
  4. Step 4: Simplify right side
    15,540.45x = 181,592,837.57
  5. Step 5: Solve for x
    x = 181,592,837.57/15,540.45
  6. Step 6: Final answer
    x = 11,685.17

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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.