Home / 12,370.92-18,551.31-6,128.65

Finding the Fourth Proportional to 12,370.92, 18,551.31 and 6,128.65

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Solution

The fourth proportional to 12,370.92, 18,551.31 and 6,128.65 is: 9,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,370.92 : 18,551.31 = 6,128.65 : x
  2. Step 2: Convert to fraction form
    12,370.92/18,551.31 = 6,128.65/x
  3. Step 3: Cross multiply
    12,370.92x = 18,551.31 × 6,128.65
  4. Step 4: Simplify right side
    12,370.92x = 113,694,486.03
  5. Step 5: Solve for x
    x = 113,694,486.03/12,370.92
  6. Step 6: Final answer
    x = 9,190.46

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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.