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Finding the Fourth Proportional to 8,671.08, 11,965.14 and 4,945.08

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Solution

The fourth proportional to 8,671.08, 11,965.14 and 4,945.08 is: 6,823.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.08 : 11,965.14 = 4,945.08 : x
  2. Step 2: Convert to fraction form
    8,671.08/11,965.14 = 4,945.08/x
  3. Step 3: Cross multiply
    8,671.08x = 11,965.14 × 4,945.08
  4. Step 4: Simplify right side
    8,671.08x = 59,168,574.51
  5. Step 5: Solve for x
    x = 59,168,574.51/8,671.08
  6. Step 6: Final answer
    x = 6,823.67

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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.