Home / 12,911.85-19,365.73-3,552.57

Finding the Fourth Proportional to 12,911.85, 19,365.73 and 3,552.57

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Solution

The fourth proportional to 12,911.85, 19,365.73 and 3,552.57 is: 5,328.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911.85 : 19,365.73 = 3,552.57 : x
  2. Step 2: Convert to fraction form
    12,911.85/19,365.73 = 3,552.57/x
  3. Step 3: Cross multiply
    12,911.85x = 19,365.73 × 3,552.57
  4. Step 4: Simplify right side
    12,911.85x = 68,798,111.43
  5. Step 5: Solve for x
    x = 68,798,111.43/12,911.85
  6. Step 6: Final answer
    x = 5,328.29

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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.