Home / 19,119.45-26,380.23-11,157.13

Finding the Fourth Proportional to 19,119.45, 26,380.23 and 11,157.13

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Solution

The fourth proportional to 19,119.45, 26,380.23 and 11,157.13 is: 15,394.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.45 : 26,380.23 = 11,157.13 : x
  2. Step 2: Convert to fraction form
    19,119.45/26,380.23 = 11,157.13/x
  3. Step 3: Cross multiply
    19,119.45x = 26,380.23 × 11,157.13
  4. Step 4: Simplify right side
    19,119.45x = 294,327,599.75
  5. Step 5: Solve for x
    x = 294,327,599.75/19,119.45
  6. Step 6: Final answer
    x = 15,394.15

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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.