Home / 9,078.44-12,528.69-5,301.55

Finding the Fourth Proportional to 9,078.44, 12,528.69 and 5,301.55

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Solution

The fourth proportional to 9,078.44, 12,528.69 and 5,301.55 is: 7,316.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.44 : 12,528.69 = 5,301.55 : x
  2. Step 2: Convert to fraction form
    9,078.44/12,528.69 = 5,301.55/x
  3. Step 3: Cross multiply
    9,078.44x = 12,528.69 × 5,301.55
  4. Step 4: Simplify right side
    9,078.44x = 66,421,413.83
  5. Step 5: Solve for x
    x = 66,421,413.83/9,078.44
  6. Step 6: Final answer
    x = 7,316.39

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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.