Home / 13,190.85-18,202.05-7,525.17

Finding the Fourth Proportional to 13,190.85, 18,202.05 and 7,525.17

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Solution

The fourth proportional to 13,190.85, 18,202.05 and 7,525.17 is: 10,383.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.85 : 18,202.05 = 7,525.17 : x
  2. Step 2: Convert to fraction form
    13,190.85/18,202.05 = 7,525.17/x
  3. Step 3: Cross multiply
    13,190.85x = 18,202.05 × 7,525.17
  4. Step 4: Simplify right side
    13,190.85x = 136,973,520.60
  5. Step 5: Solve for x
    x = 136,973,520.60/13,190.85
  6. Step 6: Final answer
    x = 10,383.98

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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.