Home / 19,662.66-27,135.12-11,165.15

Finding the Fourth Proportional to 19,662.66, 27,135.12 and 11,165.15

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Solution

The fourth proportional to 19,662.66, 27,135.12 and 11,165.15 is: 15,408.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.66 : 27,135.12 = 11,165.15 : x
  2. Step 2: Convert to fraction form
    19,662.66/27,135.12 = 11,165.15/x
  3. Step 3: Cross multiply
    19,662.66x = 27,135.12 × 11,165.15
  4. Step 4: Simplify right side
    19,662.66x = 302,967,549.39
  5. Step 5: Solve for x
    x = 302,967,549.39/19,662.66
  6. Step 6: Final answer
    x = 15,408.27

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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.