Home / 15,032.21-20,748.62-8,745.80

Finding the Fourth Proportional to 15,032.21, 20,748.62 and 8,745.80

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Solution

The fourth proportional to 15,032.21, 20,748.62 and 8,745.80 is: 12,071.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,032.21 : 20,748.62 = 8,745.80 : x
  2. Step 2: Convert to fraction form
    15,032.21/20,748.62 = 8,745.80/x
  3. Step 3: Cross multiply
    15,032.21x = 20,748.62 × 8,745.80
  4. Step 4: Simplify right side
    15,032.21x = 181,463,198.92
  5. Step 5: Solve for x
    x = 181,463,198.92/15,032.21
  6. Step 6: Final answer
    x = 12,071.63

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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.