Home / 7,888.13-10,878.75-6,825.55

Finding the Fourth Proportional to 7,888.13, 10,878.75 and 6,825.55

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Solution

The fourth proportional to 7,888.13, 10,878.75 and 6,825.55 is: 9,413.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.13 : 10,878.75 = 6,825.55 : x
  2. Step 2: Convert to fraction form
    7,888.13/10,878.75 = 6,825.55/x
  3. Step 3: Cross multiply
    7,888.13x = 10,878.75 × 6,825.55
  4. Step 4: Simplify right side
    7,888.13x = 74,253,424.87
  5. Step 5: Solve for x
    x = 74,253,424.87/7,888.13
  6. Step 6: Final answer
    x = 9,413.32

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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.