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Finding the Fourth Proportional to 9,309.48, 12,819.06 and 8,048.22

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Solution

The fourth proportional to 9,309.48, 12,819.06 and 8,048.22 is: 11,082.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.48 : 12,819.06 = 8,048.22 : x
  2. Step 2: Convert to fraction form
    9,309.48/12,819.06 = 8,048.22/x
  3. Step 3: Cross multiply
    9,309.48x = 12,819.06 × 8,048.22
  4. Step 4: Simplify right side
    9,309.48x = 103,170,615.07
  5. Step 5: Solve for x
    x = 103,170,615.07/9,309.48
  6. Step 6: Final answer
    x = 11,082.32

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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.