Home / 12,040.47-18,041.27-7,413.75

Finding the Fourth Proportional to 12,040.47, 18,041.27 and 7,413.75

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Solution

The fourth proportional to 12,040.47, 18,041.27 and 7,413.75 is: 11,108.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,040.47 : 18,041.27 = 7,413.75 : x
  2. Step 2: Convert to fraction form
    12,040.47/18,041.27 = 7,413.75/x
  3. Step 3: Cross multiply
    12,040.47x = 18,041.27 × 7,413.75
  4. Step 4: Simplify right side
    12,040.47x = 133,753,428.39
  5. Step 5: Solve for x
    x = 133,753,428.39/12,040.47
  6. Step 6: Final answer
    x = 11,108.66

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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.