Home / 8,628.56-12,943.04-2,784.95

Finding the Fourth Proportional to 8,628.56, 12,943.04 and 2,784.95

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Solution

The fourth proportional to 8,628.56, 12,943.04 and 2,784.95 is: 4,177.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.56 : 12,943.04 = 2,784.95 : x
  2. Step 2: Convert to fraction form
    8,628.56/12,943.04 = 2,784.95/x
  3. Step 3: Cross multiply
    8,628.56x = 12,943.04 × 2,784.95
  4. Step 4: Simplify right side
    8,628.56x = 36,045,640.61
  5. Step 5: Solve for x
    x = 36,045,640.61/8,628.56
  6. Step 6: Final answer
    x = 4,177.48

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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.