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Finding the Fourth Proportional to 8,459.44, 11,675.39 and 8,085.67

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Solution

The fourth proportional to 8,459.44, 11,675.39 and 8,085.67 is: 11,159.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.44 : 11,675.39 = 8,085.67 : x
  2. Step 2: Convert to fraction form
    8,459.44/11,675.39 = 8,085.67/x
  3. Step 3: Cross multiply
    8,459.44x = 11,675.39 × 8,085.67
  4. Step 4: Simplify right side
    8,459.44x = 94,403,392.20
  5. Step 5: Solve for x
    x = 94,403,392.20/8,459.44
  6. Step 6: Final answer
    x = 11,159.54

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Half 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.