Home / 7,818.14-10,785.96-4,828.79

Finding the Fourth Proportional to 7,818.14, 10,785.96 and 4,828.79

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Solution

The fourth proportional to 7,818.14, 10,785.96 and 4,828.79 is: 6,661.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.14 : 10,785.96 = 4,828.79 : x
  2. Step 2: Convert to fraction form
    7,818.14/10,785.96 = 4,828.79/x
  3. Step 3: Cross multiply
    7,818.14x = 10,785.96 × 4,828.79
  4. Step 4: Simplify right side
    7,818.14x = 52,083,081.86
  5. Step 5: Solve for x
    x = 52,083,081.86/7,818.14
  6. Step 6: Final answer
    x = 6,661.83

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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.