Home / 8,466.06-11,687.28-5,638.14

Finding the Fourth Proportional to 8,466.06, 11,687.28 and 5,638.14

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Solution

The fourth proportional to 8,466.06, 11,687.28 and 5,638.14 is: 7,783.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,466.06 : 11,687.28 = 5,638.14 : x
  2. Step 2: Convert to fraction form
    8,466.06/11,687.28 = 5,638.14/x
  3. Step 3: Cross multiply
    8,466.06x = 11,687.28 × 5,638.14
  4. Step 4: Simplify right side
    8,466.06x = 65,894,520.86
  5. Step 5: Solve for x
    x = 65,894,520.86/8,466.06
  6. Step 6: Final answer
    x = 7,783.38

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Half scale
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Double scale
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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.