Home / 12,352.34-18,515.21-5,335.65

Finding the Fourth Proportional to 12,352.34, 18,515.21 and 5,335.65

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Solution

The fourth proportional to 12,352.34, 18,515.21 and 5,335.65 is: 7,997.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,352.34 : 18,515.21 = 5,335.65 : x
  2. Step 2: Convert to fraction form
    12,352.34/18,515.21 = 5,335.65/x
  3. Step 3: Cross multiply
    12,352.34x = 18,515.21 × 5,335.65
  4. Step 4: Simplify right side
    12,352.34x = 98,790,653.56
  5. Step 5: Solve for x
    x = 98,790,653.56/12,352.34
  6. Step 6: Final answer
    x = 7,997.73

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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.