Home / 12,491.01-18,739.35-3,725.60

Finding the Fourth Proportional to 12,491.01, 18,739.35 and 3,725.60

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Solution

The fourth proportional to 12,491.01, 18,739.35 and 3,725.60 is: 5,589.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491.01 : 18,739.35 = 3,725.60 : x
  2. Step 2: Convert to fraction form
    12,491.01/18,739.35 = 3,725.60/x
  3. Step 3: Cross multiply
    12,491.01x = 18,739.35 × 3,725.60
  4. Step 4: Simplify right side
    12,491.01x = 69,815,228.66
  5. Step 5: Solve for x
    x = 69,815,228.66/12,491.01
  6. Step 6: Final answer
    x = 5,589.24

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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.