Home / 19,090.49-28,635.83-7,851.96

Finding the Fourth Proportional to 19,090.49, 28,635.83 and 7,851.96

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Solution

The fourth proportional to 19,090.49, 28,635.83 and 7,851.96 is: 11,777.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,090.49 : 28,635.83 = 7,851.96 : x
  2. Step 2: Convert to fraction form
    19,090.49/28,635.83 = 7,851.96/x
  3. Step 3: Cross multiply
    19,090.49x = 28,635.83 × 7,851.96
  4. Step 4: Simplify right side
    19,090.49x = 224,847,439.07
  5. Step 5: Solve for x
    x = 224,847,439.07/19,090.49
  6. Step 6: Final answer
    x = 11,777.98

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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.