Home / 12,929.37-19,394.48-3,570.09

Finding the Fourth Proportional to 12,929.37, 19,394.48 and 3,570.09

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Solution

The fourth proportional to 12,929.37, 19,394.48 and 3,570.09 is: 5,355.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.37 : 19,394.48 = 3,570.09 : x
  2. Step 2: Convert to fraction form
    12,929.37/19,394.48 = 3,570.09/x
  3. Step 3: Cross multiply
    12,929.37x = 19,394.48 × 3,570.09
  4. Step 4: Simplify right side
    12,929.37x = 69,240,021.25
  5. Step 5: Solve for x
    x = 69,240,021.25/12,929.37
  6. Step 6: Final answer
    x = 5,355.25

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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.