Home / 13,348.01-18,418.83-7,378.71

Finding the Fourth Proportional to 13,348.01, 18,418.83 and 7,378.71

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Solution

The fourth proportional to 13,348.01, 18,418.83 and 7,378.71 is: 10,181.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.01 : 18,418.83 = 7,378.71 : x
  2. Step 2: Convert to fraction form
    13,348.01/18,418.83 = 7,378.71/x
  3. Step 3: Cross multiply
    13,348.01x = 18,418.83 × 7,378.71
  4. Step 4: Simplify right side
    13,348.01x = 135,907,205.11
  5. Step 5: Solve for x
    x = 135,907,205.11/13,348.01
  6. Step 6: Final answer
    x = 10,181.84

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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.