Home / 13,184.88-18,194.94-7,216.40

Finding the Fourth Proportional to 13,184.88, 18,194.94 and 7,216.40

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Solution

The fourth proportional to 13,184.88, 18,194.94 and 7,216.40 is: 9,958.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.88 : 18,194.94 = 7,216.40 : x
  2. Step 2: Convert to fraction form
    13,184.88/18,194.94 = 7,216.40/x
  3. Step 3: Cross multiply
    13,184.88x = 18,194.94 × 7,216.40
  4. Step 4: Simplify right side
    13,184.88x = 131,301,874.04
  5. Step 5: Solve for x
    x = 131,301,874.04/13,184.88
  6. Step 6: Final answer
    x = 9,958.52

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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.