Home / 7,776.09-10,731.27-4,239.45

Finding the Fourth Proportional to 7,776.09, 10,731.27 and 4,239.45

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Solution

The fourth proportional to 7,776.09, 10,731.27 and 4,239.45 is: 5,850.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776.09 : 10,731.27 = 4,239.45 : x
  2. Step 2: Convert to fraction form
    7,776.09/10,731.27 = 4,239.45/x
  3. Step 3: Cross multiply
    7,776.09x = 10,731.27 × 4,239.45
  4. Step 4: Simplify right side
    7,776.09x = 45,494,682.60
  5. Step 5: Solve for x
    x = 45,494,682.60/7,776.09
  6. Step 6: Final answer
    x = 5,850.59

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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.