Home / 8,811.42-13,218.35-2,969.70

Finding the Fourth Proportional to 8,811.42, 13,218.35 and 2,969.70

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Solution

The fourth proportional to 8,811.42, 13,218.35 and 2,969.70 is: 4,454.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.42 : 13,218.35 = 2,969.70 : x
  2. Step 2: Convert to fraction form
    8,811.42/13,218.35 = 2,969.70/x
  3. Step 3: Cross multiply
    8,811.42x = 13,218.35 × 2,969.70
  4. Step 4: Simplify right side
    8,811.42x = 39,254,534.00
  5. Step 5: Solve for x
    x = 39,254,534.00/8,811.42
  6. Step 6: Final answer
    x = 4,454.96

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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.