Home / 19,116.36-26,380.76-11,157.05

Finding the Fourth Proportional to 19,116.36, 26,380.76 and 11,157.05

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Solution

The fourth proportional to 19,116.36, 26,380.76 and 11,157.05 is: 15,396.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116.36 : 26,380.76 = 11,157.05 : x
  2. Step 2: Convert to fraction form
    19,116.36/26,380.76 = 11,157.05/x
  3. Step 3: Cross multiply
    19,116.36x = 26,380.76 × 11,157.05
  4. Step 4: Simplify right side
    19,116.36x = 294,331,458.36
  5. Step 5: Solve for x
    x = 294,331,458.36/19,116.36
  6. Step 6: Final answer
    x = 15,396.84

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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.