Home / 12,134.37-16,739.78-7,098.78

Finding the Fourth Proportional to 12,134.37, 16,739.78 and 7,098.78

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Solution

The fourth proportional to 12,134.37, 16,739.78 and 7,098.78 is: 9,793.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134.37 : 16,739.78 = 7,098.78 : x
  2. Step 2: Convert to fraction form
    12,134.37/16,739.78 = 7,098.78/x
  3. Step 3: Cross multiply
    12,134.37x = 16,739.78 × 7,098.78
  4. Step 4: Simplify right side
    12,134.37x = 118,831,979.97
  5. Step 5: Solve for x
    x = 118,831,979.97/12,134.37
  6. Step 6: Final answer
    x = 9,793.01

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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.