Home / 18,647.40-25,734.78-10,692.12

Finding the Fourth Proportional to 18,647.40, 25,734.78 and 10,692.12

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Solution

The fourth proportional to 18,647.40, 25,734.78 and 10,692.12 is: 14,755.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.40 : 25,734.78 = 10,692.12 : x
  2. Step 2: Convert to fraction form
    18,647.40/25,734.78 = 10,692.12/x
  3. Step 3: Cross multiply
    18,647.40x = 25,734.78 × 10,692.12
  4. Step 4: Simplify right side
    18,647.40x = 275,159,355.93
  5. Step 5: Solve for x
    x = 275,159,355.93/18,647.40
  6. Step 6: Final answer
    x = 14,755.91

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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.