Home / 8,178.63-12,268.14-2,984.50

Finding the Fourth Proportional to 8,178.63, 12,268.14 and 2,984.50

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Solution

The fourth proportional to 8,178.63, 12,268.14 and 2,984.50 is: 4,476.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.63 : 12,268.14 = 2,984.50 : x
  2. Step 2: Convert to fraction form
    8,178.63/12,268.14 = 2,984.50/x
  3. Step 3: Cross multiply
    8,178.63x = 12,268.14 × 2,984.50
  4. Step 4: Simplify right side
    8,178.63x = 36,614,263.83
  5. Step 5: Solve for x
    x = 36,614,263.83/8,178.63
  6. Step 6: Final answer
    x = 4,476.82

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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.