Home / 14,647.68-20,269.44-12,790.08

Finding the Fourth Proportional to 14,647.68, 20,269.44 and 12,790.08

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Solution

The fourth proportional to 14,647.68, 20,269.44 and 12,790.08 is: 17,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,647.68 : 20,269.44 = 12,790.08 : x
  2. Step 2: Convert to fraction form
    14,647.68/20,269.44 = 12,790.08/x
  3. Step 3: Cross multiply
    14,647.68x = 20,269.44 × 12,790.08
  4. Step 4: Simplify right side
    14,647.68x = 259,247,759.16
  5. Step 5: Solve for x
    x = 259,247,759.16/14,647.68
  6. Step 6: Final answer
    x = 17,698.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.