Home / 12,190.59-18,286.52-3,871.26

Finding the Fourth Proportional to 12,190.59, 18,286.52 and 3,871.26

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Solution

The fourth proportional to 12,190.59, 18,286.52 and 3,871.26 is: 5,807.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.59 : 18,286.52 = 3,871.26 : x
  2. Step 2: Convert to fraction form
    12,190.59/18,286.52 = 3,871.26/x
  3. Step 3: Cross multiply
    12,190.59x = 18,286.52 × 3,871.26
  4. Step 4: Simplify right side
    12,190.59x = 70,791,762.63
  5. Step 5: Solve for x
    x = 70,791,762.63/12,190.59
  6. Step 6: Final answer
    x = 5,807.08

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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.