Home / 13,194.39-18,208.32-9,840.18

Finding the Fourth Proportional to 13,194.39, 18,208.32 and 9,840.18

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Solution

The fourth proportional to 13,194.39, 18,208.32 and 9,840.18 is: 13,579.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,194.39 : 18,208.32 = 9,840.18 : x
  2. Step 2: Convert to fraction form
    13,194.39/18,208.32 = 9,840.18/x
  3. Step 3: Cross multiply
    13,194.39x = 18,208.32 × 9,840.18
  4. Step 4: Simplify right side
    13,194.39x = 179,173,146.30
  5. Step 5: Solve for x
    x = 179,173,146.30/13,194.39
  6. Step 6: Final answer
    x = 13,579.49

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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.