Home / 19,408.10-29,134.05-12,847.10

Finding the Fourth Proportional to 19,408.10, 29,134.05 and 12,847.10

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Solution

The fourth proportional to 19,408.10, 29,134.05 and 12,847.10 is: 19,285.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,408.10 : 29,134.05 = 12,847.10 : x
  2. Step 2: Convert to fraction form
    19,408.10/29,134.05 = 12,847.10/x
  3. Step 3: Cross multiply
    19,408.10x = 29,134.05 × 12,847.10
  4. Step 4: Simplify right side
    19,408.10x = 374,288,053.76
  5. Step 5: Solve for x
    x = 374,288,053.76/19,408.10
  6. Step 6: Final answer
    x = 19,285.15

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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.