Home / 9,162.93-13,745.40-2,920.74

Finding the Fourth Proportional to 9,162.93, 13,745.40 and 2,920.74

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Solution

The fourth proportional to 9,162.93, 13,745.40 and 2,920.74 is: 4,381.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,162.93 : 13,745.40 = 2,920.74 : x
  2. Step 2: Convert to fraction form
    9,162.93/13,745.40 = 2,920.74/x
  3. Step 3: Cross multiply
    9,162.93x = 13,745.40 × 2,920.74
  4. Step 4: Simplify right side
    9,162.93x = 40,146,739.60
  5. Step 5: Solve for x
    x = 40,146,739.60/9,162.93
  6. Step 6: Final answer
    x = 4,381.43

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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.