Home / 18,738.08-28,107.12-4,886

Finding the Fourth Proportional to 18,738.08, 28,107.12 and 4,886

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Solution

The fourth proportional to 18,738.08, 28,107.12 and 4,886 is: 7,329.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.08 : 28,107.12 = 4,886 : x
  2. Step 2: Convert to fraction form
    18,738.08/28,107.12 = 4,886/x
  3. Step 3: Cross multiply
    18,738.08x = 28,107.12 × 4,886
  4. Step 4: Simplify right side
    18,738.08x = 137,331,388.32
  5. Step 5: Solve for x
    x = 137,331,388.32/18,738.08
  6. Step 6: Final answer
    x = 7,329.00

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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.