Home / 7,545.80-10,413.21-4,188.62

Finding the Fourth Proportional to 7,545.80, 10,413.21 and 4,188.62

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Solution

The fourth proportional to 7,545.80, 10,413.21 and 4,188.62 is: 5,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,545.80 : 10,413.21 = 4,188.62 : x
  2. Step 2: Convert to fraction form
    7,545.80/10,413.21 = 4,188.62/x
  3. Step 3: Cross multiply
    7,545.80x = 10,413.21 × 4,188.62
  4. Step 4: Simplify right side
    7,545.80x = 43,616,979.67
  5. Step 5: Solve for x
    x = 43,616,979.67/7,545.80
  6. Step 6: Final answer
    x = 5,780.30

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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.