Home / 12,865.21-19,293.01-4,429.33

Finding the Fourth Proportional to 12,865.21, 19,293.01 and 4,429.33

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Solution

The fourth proportional to 12,865.21, 19,293.01 and 4,429.33 is: 6,642.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,865.21 : 19,293.01 = 4,429.33 : x
  2. Step 2: Convert to fraction form
    12,865.21/19,293.01 = 4,429.33/x
  3. Step 3: Cross multiply
    12,865.21x = 19,293.01 × 4,429.33
  4. Step 4: Simplify right side
    12,865.21x = 85,455,107.98
  5. Step 5: Solve for x
    x = 85,455,107.98/12,865.21
  6. Step 6: Final answer
    x = 6,642.34

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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.