Home / 19,724.78-27,219.51-11,762.89

Finding the Fourth Proportional to 19,724.78, 27,219.51 and 11,762.89

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Solution

The fourth proportional to 19,724.78, 27,219.51 and 11,762.89 is: 16,232.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,724.78 : 27,219.51 = 11,762.89 : x
  2. Step 2: Convert to fraction form
    19,724.78/27,219.51 = 11,762.89/x
  3. Step 3: Cross multiply
    19,724.78x = 27,219.51 × 11,762.89
  4. Step 4: Simplify right side
    19,724.78x = 320,180,033.94
  5. Step 5: Solve for x
    x = 320,180,033.94/19,724.78
  6. Step 6: Final answer
    x = 16,232.37

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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.