Home / 6,848.80-10,273.20-5,120.80

Finding the Fourth Proportional to 6,848.80, 10,273.20 and 5,120.80

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Solution

The fourth proportional to 6,848.80, 10,273.20 and 5,120.80 is: 7,681.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,848.80 : 10,273.20 = 5,120.80 : x
  2. Step 2: Convert to fraction form
    6,848.80/10,273.20 = 5,120.80/x
  3. Step 3: Cross multiply
    6,848.80x = 10,273.20 × 5,120.80
  4. Step 4: Simplify right side
    6,848.80x = 52,607,002.56
  5. Step 5: Solve for x
    x = 52,607,002.56/6,848.80
  6. Step 6: Final answer
    x = 7,681.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.