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Finding the Fourth Proportional to 9,484.75, 13,110.42 and 8,642.62

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Solution

The fourth proportional to 9,484.75, 13,110.42 and 8,642.62 is: 11,946.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,484.75 : 13,110.42 = 8,642.62 : x
  2. Step 2: Convert to fraction form
    9,484.75/13,110.42 = 8,642.62/x
  3. Step 3: Cross multiply
    9,484.75x = 13,110.42 × 8,642.62
  4. Step 4: Simplify right side
    9,484.75x = 113,308,378.10
  5. Step 5: Solve for x
    x = 113,308,378.10/9,484.75
  6. Step 6: Final answer
    x = 11,946.37

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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.