Home / 7,684.32-11,515.68-4,392.48

Finding the Fourth Proportional to 7,684.32, 11,515.68 and 4,392.48

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Solution

The fourth proportional to 7,684.32, 11,515.68 and 4,392.48 is: 6,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,684.32 : 11,515.68 = 4,392.48 : x
  2. Step 2: Convert to fraction form
    7,684.32/11,515.68 = 4,392.48/x
  3. Step 3: Cross multiply
    7,684.32x = 11,515.68 × 4,392.48
  4. Step 4: Simplify right side
    7,684.32x = 50,582,394.09
  5. Step 5: Solve for x
    x = 50,582,394.09/7,684.32
  6. Step 6: Final answer
    x = 6,582.55

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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.