Home / 17,939.88-26,899.50-5,456.16

Finding the Fourth Proportional to 17,939.88, 26,899.50 and 5,456.16

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Solution

The fourth proportional to 17,939.88, 26,899.50 and 5,456.16 is: 8,181.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,939.88 : 26,899.50 = 5,456.16 : x
  2. Step 2: Convert to fraction form
    17,939.88/26,899.50 = 5,456.16/x
  3. Step 3: Cross multiply
    17,939.88x = 26,899.50 × 5,456.16
  4. Step 4: Simplify right side
    17,939.88x = 146,767,975.92
  5. Step 5: Solve for x
    x = 146,767,975.92/17,939.88
  6. Step 6: Final answer
    x = 8,181.10

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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.