Home / 12,199.34-18,296.91-3,432.21

Finding the Fourth Proportional to 12,199.34, 18,296.91 and 3,432.21

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Solution

The fourth proportional to 12,199.34, 18,296.91 and 3,432.21 is: 5,147.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,199.34 : 18,296.91 = 3,432.21 : x
  2. Step 2: Convert to fraction form
    12,199.34/18,296.91 = 3,432.21/x
  3. Step 3: Cross multiply
    12,199.34x = 18,296.91 × 3,432.21
  4. Step 4: Simplify right side
    12,199.34x = 62,798,837.47
  5. Step 5: Solve for x
    x = 62,798,837.47/12,199.34
  6. Step 6: Final answer
    x = 5,147.73

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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.