Home / 7,853.20-11,783.78-5,222.53

Finding the Fourth Proportional to 7,853.20, 11,783.78 and 5,222.53

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Solution

The fourth proportional to 7,853.20, 11,783.78 and 5,222.53 is: 7,836.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,853.20 : 11,783.78 = 5,222.53 : x
  2. Step 2: Convert to fraction form
    7,853.20/11,783.78 = 5,222.53/x
  3. Step 3: Cross multiply
    7,853.20x = 11,783.78 × 5,222.53
  4. Step 4: Simplify right side
    7,853.20x = 61,541,187.08
  5. Step 5: Solve for x
    x = 61,541,187.08/7,853.20
  6. Step 6: Final answer
    x = 7,836.45

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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.