Home / 7,813.37-10,782.48-4,276.78

Finding the Fourth Proportional to 7,813.37, 10,782.48 and 4,276.78

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Solution

The fourth proportional to 7,813.37, 10,782.48 and 4,276.78 is: 5,901.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.37 : 10,782.48 = 4,276.78 : x
  2. Step 2: Convert to fraction form
    7,813.37/10,782.48 = 4,276.78/x
  3. Step 3: Cross multiply
    7,813.37x = 10,782.48 × 4,276.78
  4. Step 4: Simplify right side
    7,813.37x = 46,114,283.90
  5. Step 5: Solve for x
    x = 46,114,283.90/7,813.37
  6. Step 6: Final answer
    x = 5,901.97

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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.