Home / 13,296.25-18,348.72-7,327.81

Finding the Fourth Proportional to 13,296.25, 18,348.72 and 7,327.81

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Solution

The fourth proportional to 13,296.25, 18,348.72 and 7,327.81 is: 10,112.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,296.25 : 18,348.72 = 7,327.81 : x
  2. Step 2: Convert to fraction form
    13,296.25/18,348.72 = 7,327.81/x
  3. Step 3: Cross multiply
    13,296.25x = 18,348.72 × 7,327.81
  4. Step 4: Simplify right side
    13,296.25x = 134,455,933.90
  5. Step 5: Solve for x
    x = 134,455,933.90/13,296.25
  6. Step 6: Final answer
    x = 10,112.32

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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.