Home / 13,544.11-18,692.86-8,237.90

Finding the Fourth Proportional to 13,544.11, 18,692.86 and 8,237.90

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Solution

The fourth proportional to 13,544.11, 18,692.86 and 8,237.90 is: 11,369.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,544.11 : 18,692.86 = 8,237.90 : x
  2. Step 2: Convert to fraction form
    13,544.11/18,692.86 = 8,237.90/x
  3. Step 3: Cross multiply
    13,544.11x = 18,692.86 × 8,237.90
  4. Step 4: Simplify right side
    13,544.11x = 153,989,817.93
  5. Step 5: Solve for x
    x = 153,989,817.93/13,544.11
  6. Step 6: Final answer
    x = 11,369.51

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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.