Home / 15,741-21,722.15-8,667.46

Finding the Fourth Proportional to 15,741, 21,722.15 and 8,667.46

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Solution

The fourth proportional to 15,741, 21,722.15 and 8,667.46 is: 11,960.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741 : 21,722.15 = 8,667.46 : x
  2. Step 2: Convert to fraction form
    15,741/21,722.15 = 8,667.46/x
  3. Step 3: Cross multiply
    15,741x = 21,722.15 × 8,667.46
  4. Step 4: Simplify right side
    15,741x = 188,275,866.24
  5. Step 5: Solve for x
    x = 188,275,866.24/15,741
  6. Step 6: Final answer
    x = 11,960.86

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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.