Home / 13,184.78-18,195.03-7,216.70

Finding the Fourth Proportional to 13,184.78, 18,195.03 and 7,216.70

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Solution

The fourth proportional to 13,184.78, 18,195.03 and 7,216.70 is: 9,959.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.78 : 18,195.03 = 7,216.70 : x
  2. Step 2: Convert to fraction form
    13,184.78/18,195.03 = 7,216.70/x
  3. Step 3: Cross multiply
    13,184.78x = 18,195.03 × 7,216.70
  4. Step 4: Simplify right side
    13,184.78x = 131,307,982.03
  5. Step 5: Solve for x
    x = 131,307,982.03/13,184.78
  6. Step 6: Final answer
    x = 9,959.06

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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.