Home / 13,348.07-18,418.92-7,378.77

Finding the Fourth Proportional to 13,348.07, 18,418.92 and 7,378.77

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Solution

The fourth proportional to 13,348.07, 18,418.92 and 7,378.77 is: 10,181.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.07 : 18,418.92 = 7,378.77 : x
  2. Step 2: Convert to fraction form
    13,348.07/18,418.92 = 7,378.77/x
  3. Step 3: Cross multiply
    13,348.07x = 18,418.92 × 7,378.77
  4. Step 4: Simplify right side
    13,348.07x = 135,908,974.33
  5. Step 5: Solve for x
    x = 135,908,974.33/13,348.07
  6. Step 6: Final answer
    x = 10,181.92

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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.