Home / 19,119.76-26,378.88-11,568.40

Finding the Fourth Proportional to 19,119.76, 26,378.88 and 11,568.40

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Solution

The fourth proportional to 19,119.76, 26,378.88 and 11,568.40 is: 15,960.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.76 : 26,378.88 = 11,568.40 : x
  2. Step 2: Convert to fraction form
    19,119.76/26,378.88 = 11,568.40/x
  3. Step 3: Cross multiply
    19,119.76x = 26,378.88 × 11,568.40
  4. Step 4: Simplify right side
    19,119.76x = 305,161,435.39
  5. Step 5: Solve for x
    x = 305,161,435.39/19,119.76
  6. Step 6: Final answer
    x = 15,960.53

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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.