Home / 6,820.15-9,412.36-3,835.81

Finding the Fourth Proportional to 6,820.15, 9,412.36 and 3,835.81

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Solution

The fourth proportional to 6,820.15, 9,412.36 and 3,835.81 is: 5,293.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.15 : 9,412.36 = 3,835.81 : x
  2. Step 2: Convert to fraction form
    6,820.15/9,412.36 = 3,835.81/x
  3. Step 3: Cross multiply
    6,820.15x = 9,412.36 × 3,835.81
  4. Step 4: Simplify right side
    6,820.15x = 36,104,024.61
  5. Step 5: Solve for x
    x = 36,104,024.61/6,820.15
  6. Step 6: Final answer
    x = 5,293.73

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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.