Home / 12,015.74-18,025.89-4,619.58

Finding the Fourth Proportional to 12,015.74, 18,025.89 and 4,619.58

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Solution

The fourth proportional to 12,015.74, 18,025.89 and 4,619.58 is: 6,930.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.74 : 18,025.89 = 4,619.58 : x
  2. Step 2: Convert to fraction form
    12,015.74/18,025.89 = 4,619.58/x
  3. Step 3: Cross multiply
    12,015.74x = 18,025.89 × 4,619.58
  4. Step 4: Simplify right side
    12,015.74x = 83,272,083.39
  5. Step 5: Solve for x
    x = 83,272,083.39/12,015.74
  6. Step 6: Final answer
    x = 6,930.25

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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.