Home / 14,081.45-19,428.75-8,413.88

Finding the Fourth Proportional to 14,081.45, 19,428.75 and 8,413.88

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Solution

The fourth proportional to 14,081.45, 19,428.75 and 8,413.88 is: 11,608.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.45 : 19,428.75 = 8,413.88 : x
  2. Step 2: Convert to fraction form
    14,081.45/19,428.75 = 8,413.88/x
  3. Step 3: Cross multiply
    14,081.45x = 19,428.75 × 8,413.88
  4. Step 4: Simplify right side
    14,081.45x = 163,471,073.91
  5. Step 5: Solve for x
    x = 163,471,073.91/14,081.45
  6. Step 6: Final answer
    x = 11,608.97

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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.