Home / 15,727.56-21,703.62-8,654.04

Finding the Fourth Proportional to 15,727.56, 21,703.62 and 8,654.04

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Solution

The fourth proportional to 15,727.56, 21,703.62 and 8,654.04 is: 11,942.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,727.56 : 21,703.62 = 8,654.04 : x
  2. Step 2: Convert to fraction form
    15,727.56/21,703.62 = 8,654.04/x
  3. Step 3: Cross multiply
    15,727.56x = 21,703.62 × 8,654.04
  4. Step 4: Simplify right side
    15,727.56x = 187,823,995.62
  5. Step 5: Solve for x
    x = 187,823,995.62/15,727.56
  6. Step 6: Final answer
    x = 11,942.35

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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.