Home / 12,840.38-19,261.26-4,076.00

Finding the Fourth Proportional to 12,840.38, 19,261.26 and 4,076.00

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Solution

The fourth proportional to 12,840.38, 19,261.26 and 4,076.00 is: 6,114.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840.38 : 19,261.26 = 4,076.00 : x
  2. Step 2: Convert to fraction form
    12,840.38/19,261.26 = 4,076.00/x
  3. Step 3: Cross multiply
    12,840.38x = 19,261.26 × 4,076.00
  4. Step 4: Simplify right side
    12,840.38x = 78,508,799.45
  5. Step 5: Solve for x
    x = 78,508,799.45/12,840.38
  6. Step 6: Final answer
    x = 6,114.21

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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.