Home / 15,727.82-21,703.74-8,654.18

Finding the Fourth Proportional to 15,727.82, 21,703.74 and 8,654.18

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Solution

The fourth proportional to 15,727.82, 21,703.74 and 8,654.18 is: 11,942.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,727.82 : 21,703.74 = 8,654.18 : x
  2. Step 2: Convert to fraction form
    15,727.82/21,703.74 = 8,654.18/x
  3. Step 3: Cross multiply
    15,727.82x = 21,703.74 × 8,654.18
  4. Step 4: Simplify right side
    15,727.82x = 187,828,072.63
  5. Step 5: Solve for x
    x = 187,828,072.63/15,727.82
  6. Step 6: Final answer
    x = 11,942.41

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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.