Home / 7,780.06-10,736.46-4,243.46

Finding the Fourth Proportional to 7,780.06, 10,736.46 and 4,243.46

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Solution

The fourth proportional to 7,780.06, 10,736.46 and 4,243.46 is: 5,855.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.06 : 10,736.46 = 4,243.46 : x
  2. Step 2: Convert to fraction form
    7,780.06/10,736.46 = 4,243.46/x
  3. Step 3: Cross multiply
    7,780.06x = 10,736.46 × 4,243.46
  4. Step 4: Simplify right side
    7,780.06x = 45,559,738.55
  5. Step 5: Solve for x
    x = 45,559,738.55/7,780.06
  6. Step 6: Final answer
    x = 5,855.96

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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.