Home / 13,246.58-18,285.48-7,940.37

Finding the Fourth Proportional to 13,246.58, 18,285.48 and 7,940.37

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Solution

The fourth proportional to 13,246.58, 18,285.48 and 7,940.37 is: 10,960.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.58 : 18,285.48 = 7,940.37 : x
  2. Step 2: Convert to fraction form
    13,246.58/18,285.48 = 7,940.37/x
  3. Step 3: Cross multiply
    13,246.58x = 18,285.48 × 7,940.37
  4. Step 4: Simplify right side
    13,246.58x = 145,193,476.83
  5. Step 5: Solve for x
    x = 145,193,476.83/13,246.58
  6. Step 6: Final answer
    x = 10,960.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.