Home / 13,413.19-18,510.68-8,104.93

Finding the Fourth Proportional to 13,413.19, 18,510.68 and 8,104.93

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Solution

The fourth proportional to 13,413.19, 18,510.68 and 8,104.93 is: 11,185.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.19 : 18,510.68 = 8,104.93 : x
  2. Step 2: Convert to fraction form
    13,413.19/18,510.68 = 8,104.93/x
  3. Step 3: Cross multiply
    13,413.19x = 18,510.68 × 8,104.93
  4. Step 4: Simplify right side
    13,413.19x = 150,027,785.91
  5. Step 5: Solve for x
    x = 150,027,785.91/13,413.19
  6. Step 6: Final answer
    x = 11,185.09

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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.