Home / 12,485.17-18,730.54-4,694.05

Finding the Fourth Proportional to 12,485.17, 18,730.54 and 4,694.05

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Solution

The fourth proportional to 12,485.17, 18,730.54 and 4,694.05 is: 7,042.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.17 : 18,730.54 = 4,694.05 : x
  2. Step 2: Convert to fraction form
    12,485.17/18,730.54 = 4,694.05/x
  3. Step 3: Cross multiply
    12,485.17x = 18,730.54 × 4,694.05
  4. Step 4: Simplify right side
    12,485.17x = 87,922,091.29
  5. Step 5: Solve for x
    x = 87,922,091.29/12,485.17
  6. Step 6: Final answer
    x = 7,042.12

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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.