Home / 14,080.75-21,121.13-3,692.50

Finding the Fourth Proportional to 14,080.75, 21,121.13 and 3,692.50

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Solution

The fourth proportional to 14,080.75, 21,121.13 and 3,692.50 is: 5,538.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,080.75 : 21,121.13 = 3,692.50 : x
  2. Step 2: Convert to fraction form
    14,080.75/21,121.13 = 3,692.50/x
  3. Step 3: Cross multiply
    14,080.75x = 21,121.13 × 3,692.50
  4. Step 4: Simplify right side
    14,080.75x = 77,989,754.06
  5. Step 5: Solve for x
    x = 77,989,754.06/14,080.75
  6. Step 6: Final answer
    x = 5,538.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.