Home / 12,873.21-19,285.17-8,692.61

Finding the Fourth Proportional to 12,873.21, 19,285.17 and 8,692.61

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Solution

The fourth proportional to 12,873.21, 19,285.17 and 8,692.61 is: 13,022.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873.21 : 19,285.17 = 8,692.61 : x
  2. Step 2: Convert to fraction form
    12,873.21/19,285.17 = 8,692.61/x
  3. Step 3: Cross multiply
    12,873.21x = 19,285.17 × 8,692.61
  4. Step 4: Simplify right side
    12,873.21x = 167,638,365.17
  5. Step 5: Solve for x
    x = 167,638,365.17/12,873.21
  6. Step 6: Final answer
    x = 13,022.27

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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.