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Finding the Fourth Proportional to 8,886.47, 13,326.63 and 4,943.72

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Solution

The fourth proportional to 8,886.47, 13,326.63 and 4,943.72 is: 7,413.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.47 : 13,326.63 = 4,943.72 : x
  2. Step 2: Convert to fraction form
    8,886.47/13,326.63 = 4,943.72/x
  3. Step 3: Cross multiply
    8,886.47x = 13,326.63 × 4,943.72
  4. Step 4: Simplify right side
    8,886.47x = 65,883,127.26
  5. Step 5: Solve for x
    x = 65,883,127.26/8,886.47
  6. Step 6: Final answer
    x = 7,413.87

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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.