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Finding the Fourth Proportional to 17,622.12, 26,413.02 and 7,221

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Solution

The fourth proportional to 17,622.12, 26,413.02 and 7,221 is: 10,823.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,622.12 : 26,413.02 = 7,221 : x
  2. Step 2: Convert to fraction form
    17,622.12/26,413.02 = 7,221/x
  3. Step 3: Cross multiply
    17,622.12x = 26,413.02 × 7,221
  4. Step 4: Simplify right side
    17,622.12x = 190,728,417.42
  5. Step 5: Solve for x
    x = 190,728,417.42/17,622.12
  6. Step 6: Final answer
    x = 10,823.24

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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.