Home / 19,260.99-28,879.01-12,667.18

Finding the Fourth Proportional to 19,260.99, 28,879.01 and 12,667.18

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Solution

The fourth proportional to 19,260.99, 28,879.01 and 12,667.18 is: 18,992.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,260.99 : 28,879.01 = 12,667.18 : x
  2. Step 2: Convert to fraction form
    19,260.99/28,879.01 = 12,667.18/x
  3. Step 3: Cross multiply
    19,260.99x = 28,879.01 × 12,667.18
  4. Step 4: Simplify right side
    19,260.99x = 365,815,617.89
  5. Step 5: Solve for x
    x = 365,815,617.89/19,260.99
  6. Step 6: Final answer
    x = 18,992.57

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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.