Home / 18,243.36-25,178.28-10,692.68

Finding the Fourth Proportional to 18,243.36, 25,178.28 and 10,692.68

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Solution

The fourth proportional to 18,243.36, 25,178.28 and 10,692.68 is: 14,757.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.36 : 25,178.28 = 10,692.68 : x
  2. Step 2: Convert to fraction form
    18,243.36/25,178.28 = 10,692.68/x
  3. Step 3: Cross multiply
    18,243.36x = 25,178.28 × 10,692.68
  4. Step 4: Simplify right side
    18,243.36x = 269,223,125.00
  5. Step 5: Solve for x
    x = 269,223,125.00/18,243.36
  6. Step 6: Final answer
    x = 14,757.32

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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.