Home / 6,521.07-9,000.45-4,162.80

Finding the Fourth Proportional to 6,521.07, 9,000.45 and 4,162.80

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Solution

The fourth proportional to 6,521.07, 9,000.45 and 4,162.80 is: 5,745.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,521.07 : 9,000.45 = 4,162.80 : x
  2. Step 2: Convert to fraction form
    6,521.07/9,000.45 = 4,162.80/x
  3. Step 3: Cross multiply
    6,521.07x = 9,000.45 × 4,162.80
  4. Step 4: Simplify right side
    6,521.07x = 37,467,073.26
  5. Step 5: Solve for x
    x = 37,467,073.26/6,521.07
  6. Step 6: Final answer
    x = 5,745.54

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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.