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Finding the Fourth Proportional to 8,886.51, 12,232.62 and 7,960.68

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Solution

The fourth proportional to 8,886.51, 12,232.62 and 7,960.68 is: 10,958.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.51 : 12,232.62 = 7,960.68 : x
  2. Step 2: Convert to fraction form
    8,886.51/12,232.62 = 7,960.68/x
  3. Step 3: Cross multiply
    8,886.51x = 12,232.62 × 7,960.68
  4. Step 4: Simplify right side
    8,886.51x = 97,379,973.38
  5. Step 5: Solve for x
    x = 97,379,973.38/8,886.51
  6. Step 6: Final answer
    x = 10,958.18

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Half scale
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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.