Home / 7,785.26-10,739.31-4,947.74

Finding the Fourth Proportional to 7,785.26, 10,739.31 and 4,947.74

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Solution

The fourth proportional to 7,785.26, 10,739.31 and 4,947.74 is: 6,825.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.26 : 10,739.31 = 4,947.74 : x
  2. Step 2: Convert to fraction form
    7,785.26/10,739.31 = 4,947.74/x
  3. Step 3: Cross multiply
    7,785.26x = 10,739.31 × 4,947.74
  4. Step 4: Simplify right side
    7,785.26x = 53,135,313.66
  5. Step 5: Solve for x
    x = 53,135,313.66/7,785.26
  6. Step 6: Final answer
    x = 6,825.12

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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.