Home / 12,671.24-19,005.64-3,903.80

Finding the Fourth Proportional to 12,671.24, 19,005.64 and 3,903.80

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Solution

The fourth proportional to 12,671.24, 19,005.64 and 3,903.80 is: 5,855.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671.24 : 19,005.64 = 3,903.80 : x
  2. Step 2: Convert to fraction form
    12,671.24/19,005.64 = 3,903.80/x
  3. Step 3: Cross multiply
    12,671.24x = 19,005.64 × 3,903.80
  4. Step 4: Simplify right side
    12,671.24x = 74,194,112.64
  5. Step 5: Solve for x
    x = 74,194,112.64/12,671.24
  6. Step 6: Final answer
    x = 5,855.32

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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.