Home / 8,680.81-11,979.53-4,800.25

Finding the Fourth Proportional to 8,680.81, 11,979.53 and 4,800.25

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Solution

The fourth proportional to 8,680.81, 11,979.53 and 4,800.25 is: 6,624.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.81 : 11,979.53 = 4,800.25 : x
  2. Step 2: Convert to fraction form
    8,680.81/11,979.53 = 4,800.25/x
  3. Step 3: Cross multiply
    8,680.81x = 11,979.53 × 4,800.25
  4. Step 4: Simplify right side
    8,680.81x = 57,504,738.88
  5. Step 5: Solve for x
    x = 57,504,738.88/8,680.81
  6. Step 6: Final answer
    x = 6,624.35

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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.