Home / 8,749.58-13,129.82-3,555.45

Finding the Fourth Proportional to 8,749.58, 13,129.82 and 3,555.45

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Solution

The fourth proportional to 8,749.58, 13,129.82 and 3,555.45 is: 5,335.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.58 : 13,129.82 = 3,555.45 : x
  2. Step 2: Convert to fraction form
    8,749.58/13,129.82 = 3,555.45/x
  3. Step 3: Cross multiply
    8,749.58x = 13,129.82 × 3,555.45
  4. Step 4: Simplify right side
    8,749.58x = 46,682,400.74
  5. Step 5: Solve for x
    x = 46,682,400.74/8,749.58
  6. Step 6: Final answer
    x = 5,335.39

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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.