Home / 13,922.08-20,888.43-8,379.25

Finding the Fourth Proportional to 13,922.08, 20,888.43 and 8,379.25

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Solution

The fourth proportional to 13,922.08, 20,888.43 and 8,379.25 is: 12,572.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.08 : 20,888.43 = 8,379.25 : x
  2. Step 2: Convert to fraction form
    13,922.08/20,888.43 = 8,379.25/x
  3. Step 3: Cross multiply
    13,922.08x = 20,888.43 × 8,379.25
  4. Step 4: Simplify right side
    13,922.08x = 175,029,340.57
  5. Step 5: Solve for x
    x = 175,029,340.57/13,922.08
  6. Step 6: Final answer
    x = 12,572.07

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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.