Home / 7,789.12-10,750.26-4,647.16

Finding the Fourth Proportional to 7,789.12, 10,750.26 and 4,647.16

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Solution

The fourth proportional to 7,789.12, 10,750.26 and 4,647.16 is: 6,413.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.12 : 10,750.26 = 4,647.16 : x
  2. Step 2: Convert to fraction form
    7,789.12/10,750.26 = 4,647.16/x
  3. Step 3: Cross multiply
    7,789.12x = 10,750.26 × 4,647.16
  4. Step 4: Simplify right side
    7,789.12x = 49,958,178.26
  5. Step 5: Solve for x
    x = 49,958,178.26/7,789.12
  6. Step 6: Final answer
    x = 6,413.84

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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.