Home / 7,844.86-10,825.57-4,702.78

Finding the Fourth Proportional to 7,844.86, 10,825.57 and 4,702.78

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Solution

The fourth proportional to 7,844.86, 10,825.57 and 4,702.78 is: 6,489.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,844.86 : 10,825.57 = 4,702.78 : x
  2. Step 2: Convert to fraction form
    7,844.86/10,825.57 = 4,702.78/x
  3. Step 3: Cross multiply
    7,844.86x = 10,825.57 × 4,702.78
  4. Step 4: Simplify right side
    7,844.86x = 50,910,274.08
  5. Step 5: Solve for x
    x = 50,910,274.08/7,844.86
  6. Step 6: Final answer
    x = 6,489.63

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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.