Home / 8,724.72-13,077.56-4,285.44

Finding the Fourth Proportional to 8,724.72, 13,077.56 and 4,285.44

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Solution

The fourth proportional to 8,724.72, 13,077.56 and 4,285.44 is: 6,423.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.72 : 13,077.56 = 4,285.44 : x
  2. Step 2: Convert to fraction form
    8,724.72/13,077.56 = 4,285.44/x
  3. Step 3: Cross multiply
    8,724.72x = 13,077.56 × 4,285.44
  4. Step 4: Simplify right side
    8,724.72x = 56,043,077.30
  5. Step 5: Solve for x
    x = 56,043,077.30/8,724.72
  6. Step 6: Final answer
    x = 6,423.48

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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.