Home / 19,161.78-26,443.43-10,664.26

Finding the Fourth Proportional to 19,161.78, 26,443.43 and 10,664.26

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Solution

The fourth proportional to 19,161.78, 26,443.43 and 10,664.26 is: 14,716.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,161.78 : 26,443.43 = 10,664.26 : x
  2. Step 2: Convert to fraction form
    19,161.78/26,443.43 = 10,664.26/x
  3. Step 3: Cross multiply
    19,161.78x = 26,443.43 × 10,664.26
  4. Step 4: Simplify right side
    19,161.78x = 281,999,612.81
  5. Step 5: Solve for x
    x = 281,999,612.81/19,161.78
  6. Step 6: Final answer
    x = 14,716.78

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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.