Home / 19,125.20-28,647.48-8,745.68

Finding the Fourth Proportional to 19,125.20, 28,647.48 and 8,745.68

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Solution

The fourth proportional to 19,125.20, 28,647.48 and 8,745.68 is: 13,100.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,125.20 : 28,647.48 = 8,745.68 : x
  2. Step 2: Convert to fraction form
    19,125.20/28,647.48 = 8,745.68/x
  3. Step 3: Cross multiply
    19,125.20x = 28,647.48 × 8,745.68
  4. Step 4: Simplify right side
    19,125.20x = 250,541,692.89
  5. Step 5: Solve for x
    x = 250,541,692.89/19,125.20
  6. Step 6: Final answer
    x = 13,100.08

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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.