Home / 12,840.64-19,260.90-4,076.24

Finding the Fourth Proportional to 12,840.64, 19,260.90 and 4,076.24

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Solution

The fourth proportional to 12,840.64, 19,260.90 and 4,076.24 is: 6,114.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840.64 : 19,260.90 = 4,076.24 : x
  2. Step 2: Convert to fraction form
    12,840.64/19,260.90 = 4,076.24/x
  3. Step 3: Cross multiply
    12,840.64x = 19,260.90 × 4,076.24
  4. Step 4: Simplify right side
    12,840.64x = 78,512,051.02
  5. Step 5: Solve for x
    x = 78,512,051.02/12,840.64
  6. Step 6: Final answer
    x = 6,114.34

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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.