Home / 12,653.31-18,979.38-4,334.07

Finding the Fourth Proportional to 12,653.31, 18,979.38 and 4,334.07

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Solution

The fourth proportional to 12,653.31, 18,979.38 and 4,334.07 is: 6,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,653.31 : 18,979.38 = 4,334.07 : x
  2. Step 2: Convert to fraction form
    12,653.31/18,979.38 = 4,334.07/x
  3. Step 3: Cross multiply
    12,653.31x = 18,979.38 × 4,334.07
  4. Step 4: Simplify right side
    12,653.31x = 82,257,961.48
  5. Step 5: Solve for x
    x = 82,257,961.48/12,653.31
  6. Step 6: Final answer
    x = 6,500.90

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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.