Home / 7,545.72-10,413.12-4,188.60

Finding the Fourth Proportional to 7,545.72, 10,413.12 and 4,188.60

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Solution

The fourth proportional to 7,545.72, 10,413.12 and 4,188.60 is: 5,780.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,545.72 : 10,413.12 = 4,188.60 : x
  2. Step 2: Convert to fraction form
    7,545.72/10,413.12 = 4,188.60/x
  3. Step 3: Cross multiply
    7,545.72x = 10,413.12 × 4,188.60
  4. Step 4: Simplify right side
    7,545.72x = 43,616,394.43
  5. Step 5: Solve for x
    x = 43,616,394.43/7,545.72
  6. Step 6: Final answer
    x = 5,780.28

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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.