Home / 15,220.63-21,004.41-8,506.27

Finding the Fourth Proportional to 15,220.63, 21,004.41 and 8,506.27

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Solution

The fourth proportional to 15,220.63, 21,004.41 and 8,506.27 is: 11,738.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,220.63 : 21,004.41 = 8,506.27 : x
  2. Step 2: Convert to fraction form
    15,220.63/21,004.41 = 8,506.27/x
  3. Step 3: Cross multiply
    15,220.63x = 21,004.41 × 8,506.27
  4. Step 4: Simplify right side
    15,220.63x = 178,669,182.65
  5. Step 5: Solve for x
    x = 178,669,182.65/15,220.63
  6. Step 6: Final answer
    x = 11,738.62

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Half scale
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Double scale
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Similar ratio
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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.