Home / 7,425.48-11,139.50-2,745.51

Finding the Fourth Proportional to 7,425.48, 11,139.50 and 2,745.51

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Solution

The fourth proportional to 7,425.48, 11,139.50 and 2,745.51 is: 4,118.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,425.48 : 11,139.50 = 2,745.51 : x
  2. Step 2: Convert to fraction form
    7,425.48/11,139.50 = 2,745.51/x
  3. Step 3: Cross multiply
    7,425.48x = 11,139.50 × 2,745.51
  4. Step 4: Simplify right side
    7,425.48x = 30,583,594.92
  5. Step 5: Solve for x
    x = 30,583,594.92/7,425.48
  6. Step 6: Final answer
    x = 4,118.74

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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.