Home / 19,336.30-26,690.43-11,378.14

Finding the Fourth Proportional to 19,336.30, 26,690.43 and 11,378.14

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Solution

The fourth proportional to 19,336.30, 26,690.43 and 11,378.14 is: 15,705.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,336.30 : 26,690.43 = 11,378.14 : x
  2. Step 2: Convert to fraction form
    19,336.30/26,690.43 = 11,378.14/x
  3. Step 3: Cross multiply
    19,336.30x = 26,690.43 × 11,378.14
  4. Step 4: Simplify right side
    19,336.30x = 303,687,449.20
  5. Step 5: Solve for x
    x = 303,687,449.20/19,336.30
  6. Step 6: Final answer
    x = 15,705.56

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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.