Home / 9,078.32-13,604.78-4,920.60

Finding the Fourth Proportional to 9,078.32, 13,604.78 and 4,920.60

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Solution

The fourth proportional to 9,078.32, 13,604.78 and 4,920.60 is: 7,374.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.32 : 13,604.78 = 4,920.60 : x
  2. Step 2: Convert to fraction form
    9,078.32/13,604.78 = 4,920.60/x
  3. Step 3: Cross multiply
    9,078.32x = 13,604.78 × 4,920.60
  4. Step 4: Simplify right side
    9,078.32x = 66,943,680.47
  5. Step 5: Solve for x
    x = 66,943,680.47/9,078.32
  6. Step 6: Final answer
    x = 7,374.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.