Home / 8,910.08-13,365.81-2,986.98

Finding the Fourth Proportional to 8,910.08, 13,365.81 and 2,986.98

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Solution

The fourth proportional to 8,910.08, 13,365.81 and 2,986.98 is: 4,480.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.08 : 13,365.81 = 2,986.98 : x
  2. Step 2: Convert to fraction form
    8,910.08/13,365.81 = 2,986.98/x
  3. Step 3: Cross multiply
    8,910.08x = 13,365.81 × 2,986.98
  4. Step 4: Simplify right side
    8,910.08x = 39,923,407.15
  5. Step 5: Solve for x
    x = 39,923,407.15/8,910.08
  6. Step 6: Final answer
    x = 4,480.70

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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.