Home / 8,781.44-13,172.09-2,937.98

Finding the Fourth Proportional to 8,781.44, 13,172.09 and 2,937.98

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Solution

The fourth proportional to 8,781.44, 13,172.09 and 2,937.98 is: 4,406.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.44 : 13,172.09 = 2,937.98 : x
  2. Step 2: Convert to fraction form
    8,781.44/13,172.09 = 2,937.98/x
  3. Step 3: Cross multiply
    8,781.44x = 13,172.09 × 2,937.98
  4. Step 4: Simplify right side
    8,781.44x = 38,699,355.22
  5. Step 5: Solve for x
    x = 38,699,355.22/8,781.44
  6. Step 6: Final answer
    x = 4,406.95

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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.