Home / 13,323.69-18,388.94-12,733.20

Finding the Fourth Proportional to 13,323.69, 18,388.94 and 12,733.20

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Solution

The fourth proportional to 13,323.69, 18,388.94 and 12,733.20 is: 17,573.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,323.69 : 18,388.94 = 12,733.20 : x
  2. Step 2: Convert to fraction form
    13,323.69/18,388.94 = 12,733.20/x
  3. Step 3: Cross multiply
    13,323.69x = 18,388.94 × 12,733.20
  4. Step 4: Simplify right side
    13,323.69x = 234,149,987.14
  5. Step 5: Solve for x
    x = 234,149,987.14/13,323.69
  6. Step 6: Final answer
    x = 17,573.96

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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.