Home / 13,155.56-19,733.75-5,756.21

Finding the Fourth Proportional to 13,155.56, 19,733.75 and 5,756.21

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Solution

The fourth proportional to 13,155.56, 19,733.75 and 5,756.21 is: 8,634.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155.56 : 19,733.75 = 5,756.21 : x
  2. Step 2: Convert to fraction form
    13,155.56/19,733.75 = 5,756.21/x
  3. Step 3: Cross multiply
    13,155.56x = 19,733.75 × 5,756.21
  4. Step 4: Simplify right side
    13,155.56x = 113,591,609.09
  5. Step 5: Solve for x
    x = 113,591,609.09/13,155.56
  6. Step 6: Final answer
    x = 8,634.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.