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Finding the Fourth Proportional to 10,642.88, 15,969.79 and 4,723.82

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Solution

The fourth proportional to 10,642.88, 15,969.79 and 4,723.82 is: 7,088.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.88 : 15,969.79 = 4,723.82 : x
  2. Step 2: Convert to fraction form
    10,642.88/15,969.79 = 4,723.82/x
  3. Step 3: Cross multiply
    10,642.88x = 15,969.79 × 4,723.82
  4. Step 4: Simplify right side
    10,642.88x = 75,438,413.40
  5. Step 5: Solve for x
    x = 75,438,413.40/10,642.88
  6. Step 6: Final answer
    x = 7,088.16

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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.