Home / 8,114.81-12,172.30-3,184.95

Finding the Fourth Proportional to 8,114.81, 12,172.30 and 3,184.95

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Solution

The fourth proportional to 8,114.81, 12,172.30 and 3,184.95 is: 4,777.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.81 : 12,172.30 = 3,184.95 : x
  2. Step 2: Convert to fraction form
    8,114.81/12,172.30 = 3,184.95/x
  3. Step 3: Cross multiply
    8,114.81x = 12,172.30 × 3,184.95
  4. Step 4: Simplify right side
    8,114.81x = 38,768,158.92
  5. Step 5: Solve for x
    x = 38,768,158.92/8,114.81
  6. Step 6: Final answer
    x = 4,777.46

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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.