Home / 6,745.07-10,117.61-1,815.21

Finding the Fourth Proportional to 6,745.07, 10,117.61 and 1,815.21

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Solution

The fourth proportional to 6,745.07, 10,117.61 and 1,815.21 is: 2,722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,745.07 : 10,117.61 = 1,815.21 : x
  2. Step 2: Convert to fraction form
    6,745.07/10,117.61 = 1,815.21/x
  3. Step 3: Cross multiply
    6,745.07x = 10,117.61 × 1,815.21
  4. Step 4: Simplify right side
    6,745.07x = 18,365,577.77
  5. Step 5: Solve for x
    x = 18,365,577.77/6,745.07
  6. Step 6: Final answer
    x = 2,722.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.