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Finding the Fourth Proportional to 8,406.67, 11,602.59 and 6,413.46

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Solution

The fourth proportional to 8,406.67, 11,602.59 and 6,413.46 is: 8,851.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,406.67 : 11,602.59 = 6,413.46 : x
  2. Step 2: Convert to fraction form
    8,406.67/11,602.59 = 6,413.46/x
  3. Step 3: Cross multiply
    8,406.67x = 11,602.59 × 6,413.46
  4. Step 4: Simplify right side
    8,406.67x = 74,412,746.86
  5. Step 5: Solve for x
    x = 74,412,746.86/8,406.67
  6. Step 6: Final answer
    x = 8,851.63

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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.