Home / 13,408.36-20,107.74-4,640.92

Finding the Fourth Proportional to 13,408.36, 20,107.74 and 4,640.92

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Solution

The fourth proportional to 13,408.36, 20,107.74 and 4,640.92 is: 6,959.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.36 : 20,107.74 = 4,640.92 : x
  2. Step 2: Convert to fraction form
    13,408.36/20,107.74 = 4,640.92/x
  3. Step 3: Cross multiply
    13,408.36x = 20,107.74 × 4,640.92
  4. Step 4: Simplify right side
    13,408.36x = 93,318,412.72
  5. Step 5: Solve for x
    x = 93,318,412.72/13,408.36
  6. Step 6: Final answer
    x = 6,959.72

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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.