Home / 13,868.96-19,142.55-11,627.28

Finding the Fourth Proportional to 13,868.96, 19,142.55 and 11,627.28

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Solution

The fourth proportional to 13,868.96, 19,142.55 and 11,627.28 is: 16,048.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.96 : 19,142.55 = 11,627.28 : x
  2. Step 2: Convert to fraction form
    13,868.96/19,142.55 = 11,627.28/x
  3. Step 3: Cross multiply
    13,868.96x = 19,142.55 × 11,627.28
  4. Step 4: Simplify right side
    13,868.96x = 222,575,788.76
  5. Step 5: Solve for x
    x = 222,575,788.76/13,868.96
  6. Step 6: Final answer
    x = 16,048.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.