Home / 13,130.12-19,692.17-3,770.06

Finding the Fourth Proportional to 13,130.12, 19,692.17 and 3,770.06

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Solution

The fourth proportional to 13,130.12, 19,692.17 and 3,770.06 is: 5,654.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.12 : 19,692.17 = 3,770.06 : x
  2. Step 2: Convert to fraction form
    13,130.12/19,692.17 = 3,770.06/x
  3. Step 3: Cross multiply
    13,130.12x = 19,692.17 × 3,770.06
  4. Step 4: Simplify right side
    13,130.12x = 74,240,721.09
  5. Step 5: Solve for x
    x = 74,240,721.09/13,130.12
  6. Step 6: Final answer
    x = 5,654.23

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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.