Home / 18,768.11-25,897.73-10,809.86

Finding the Fourth Proportional to 18,768.11, 25,897.73 and 10,809.86

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Solution

The fourth proportional to 18,768.11, 25,897.73 and 10,809.86 is: 14,916.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.11 : 25,897.73 = 10,809.86 : x
  2. Step 2: Convert to fraction form
    18,768.11/25,897.73 = 10,809.86/x
  3. Step 3: Cross multiply
    18,768.11x = 25,897.73 × 10,809.86
  4. Step 4: Simplify right side
    18,768.11x = 279,950,652.08
  5. Step 5: Solve for x
    x = 279,950,652.08/18,768.11
  6. Step 6: Final answer
    x = 14,916.30

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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.