Home / 19,116.86-26,381.44-11,157.54

Finding the Fourth Proportional to 19,116.86, 26,381.44 and 11,157.54

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Solution

The fourth proportional to 19,116.86, 26,381.44 and 11,157.54 is: 15,397.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116.86 : 26,381.44 = 11,157.54 : x
  2. Step 2: Convert to fraction form
    19,116.86/26,381.44 = 11,157.54/x
  3. Step 3: Cross multiply
    19,116.86x = 26,381.44 × 11,157.54
  4. Step 4: Simplify right side
    19,116.86x = 294,351,972.06
  5. Step 5: Solve for x
    x = 294,351,972.06/19,116.86
  6. Step 6: Final answer
    x = 15,397.51

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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.