Home / 8,809.85-12,150.52-7,745.36

Finding the Fourth Proportional to 8,809.85, 12,150.52 and 7,745.36

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Solution

The fourth proportional to 8,809.85, 12,150.52 and 7,745.36 is: 10,682.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.85 : 12,150.52 = 7,745.36 : x
  2. Step 2: Convert to fraction form
    8,809.85/12,150.52 = 7,745.36/x
  3. Step 3: Cross multiply
    8,809.85x = 12,150.52 × 7,745.36
  4. Step 4: Simplify right side
    8,809.85x = 94,110,151.59
  5. Step 5: Solve for x
    x = 94,110,151.59/8,809.85
  6. Step 6: Final answer
    x = 10,682.38

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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.