Home / 12,382.44-18,580.82-4,987.56

Finding the Fourth Proportional to 12,382.44, 18,580.82 and 4,987.56

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Solution

The fourth proportional to 12,382.44, 18,580.82 and 4,987.56 is: 7,484.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.44 : 18,580.82 = 4,987.56 : x
  2. Step 2: Convert to fraction form
    12,382.44/18,580.82 = 4,987.56/x
  3. Step 3: Cross multiply
    12,382.44x = 18,580.82 × 4,987.56
  4. Step 4: Simplify right side
    12,382.44x = 92,672,954.60
  5. Step 5: Solve for x
    x = 92,672,954.60/12,382.44
  6. Step 6: Final answer
    x = 7,484.22

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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.