Home / 7,750.06-10,694.80-4,213.20

Finding the Fourth Proportional to 7,750.06, 10,694.80 and 4,213.20

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Solution

The fourth proportional to 7,750.06, 10,694.80 and 4,213.20 is: 5,814.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,750.06 : 10,694.80 = 4,213.20 : x
  2. Step 2: Convert to fraction form
    7,750.06/10,694.80 = 4,213.20/x
  3. Step 3: Cross multiply
    7,750.06x = 10,694.80 × 4,213.20
  4. Step 4: Simplify right side
    7,750.06x = 45,059,331.36
  5. Step 5: Solve for x
    x = 45,059,331.36/7,750.06
  6. Step 6: Final answer
    x = 5,814.06

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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.