Home / 12,798.31-19,197.77-3,438.34

Finding the Fourth Proportional to 12,798.31, 19,197.77 and 3,438.34

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Solution

The fourth proportional to 12,798.31, 19,197.77 and 3,438.34 is: 5,157.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.31 : 19,197.77 = 3,438.34 : x
  2. Step 2: Convert to fraction form
    12,798.31/19,197.77 = 3,438.34/x
  3. Step 3: Cross multiply
    12,798.31x = 19,197.77 × 3,438.34
  4. Step 4: Simplify right side
    12,798.31x = 66,008,395.32
  5. Step 5: Solve for x
    x = 66,008,395.32/12,798.31
  6. Step 6: Final answer
    x = 5,157.59

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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.