Home / 8,979.54-12,392.45-5,203.73

Finding the Fourth Proportional to 8,979.54, 12,392.45 and 5,203.73

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Solution

The fourth proportional to 8,979.54, 12,392.45 and 5,203.73 is: 7,181.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.54 : 12,392.45 = 5,203.73 : x
  2. Step 2: Convert to fraction form
    8,979.54/12,392.45 = 5,203.73/x
  3. Step 3: Cross multiply
    8,979.54x = 12,392.45 × 5,203.73
  4. Step 4: Simplify right side
    8,979.54x = 64,486,963.84
  5. Step 5: Solve for x
    x = 64,486,963.84/8,979.54
  6. Step 6: Final answer
    x = 7,181.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.