Home / 14,408.77-21,572.41-7,638.94

Finding the Fourth Proportional to 14,408.77, 21,572.41 and 7,638.94

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Solution

The fourth proportional to 14,408.77, 21,572.41 and 7,638.94 is: 11,436.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,408.77 : 21,572.41 = 7,638.94 : x
  2. Step 2: Convert to fraction form
    14,408.77/21,572.41 = 7,638.94/x
  3. Step 3: Cross multiply
    14,408.77x = 21,572.41 × 7,638.94
  4. Step 4: Simplify right side
    14,408.77x = 164,790,345.65
  5. Step 5: Solve for x
    x = 164,790,345.65/14,408.77
  6. Step 6: Final answer
    x = 11,436.81

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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.