Home / 12,977.90-19,471.37-4,094.60

Finding the Fourth Proportional to 12,977.90, 19,471.37 and 4,094.60

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Solution

The fourth proportional to 12,977.90, 19,471.37 and 4,094.60 is: 6,143.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977.90 : 19,471.37 = 4,094.60 : x
  2. Step 2: Convert to fraction form
    12,977.90/19,471.37 = 4,094.60/x
  3. Step 3: Cross multiply
    12,977.90x = 19,471.37 × 4,094.60
  4. Step 4: Simplify right side
    12,977.90x = 79,727,511.74
  5. Step 5: Solve for x
    x = 79,727,511.74/12,977.90
  6. Step 6: Final answer
    x = 6,143.33

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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.