Home / 7,839.36-10,820.21-4,853.39

Finding the Fourth Proportional to 7,839.36, 10,820.21 and 4,853.39

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Solution

The fourth proportional to 7,839.36, 10,820.21 and 4,853.39 is: 6,698.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.36 : 10,820.21 = 4,853.39 : x
  2. Step 2: Convert to fraction form
    7,839.36/10,820.21 = 4,853.39/x
  3. Step 3: Cross multiply
    7,839.36x = 10,820.21 × 4,853.39
  4. Step 4: Simplify right side
    7,839.36x = 52,514,620.64
  5. Step 5: Solve for x
    x = 52,514,620.64/7,839.36
  6. Step 6: Final answer
    x = 6,698.84

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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.