Home / 19,664.83-27,135.13-11,166.89

Finding the Fourth Proportional to 19,664.83, 27,135.13 and 11,166.89

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Solution

The fourth proportional to 19,664.83, 27,135.13 and 11,166.89 is: 15,408.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.83 : 27,135.13 = 11,166.89 : x
  2. Step 2: Convert to fraction form
    19,664.83/27,135.13 = 11,166.89/x
  3. Step 3: Cross multiply
    19,664.83x = 27,135.13 × 11,166.89
  4. Step 4: Simplify right side
    19,664.83x = 303,014,916.09
  5. Step 5: Solve for x
    x = 303,014,916.09/19,664.83
  6. Step 6: Final answer
    x = 15,408.98

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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.