Home / 15,908.10-23,813.55-12,408.90

Finding the Fourth Proportional to 15,908.10, 23,813.55 and 12,408.90

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Solution

The fourth proportional to 15,908.10, 23,813.55 and 12,408.90 is: 18,575.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,908.10 : 23,813.55 = 12,408.90 : x
  2. Step 2: Convert to fraction form
    15,908.10/23,813.55 = 12,408.90/x
  3. Step 3: Cross multiply
    15,908.10x = 23,813.55 × 12,408.90
  4. Step 4: Simplify right side
    15,908.10x = 295,499,960.60
  5. Step 5: Solve for x
    x = 295,499,960.60/15,908.10
  6. Step 6: Final answer
    x = 18,575.44

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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.