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Finding the Fourth Proportional to 8,945.16, 12,343.92 and 4,966.20

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Solution

The fourth proportional to 8,945.16, 12,343.92 and 4,966.20 is: 6,853.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.16 : 12,343.92 = 4,966.20 : x
  2. Step 2: Convert to fraction form
    8,945.16/12,343.92 = 4,966.20/x
  3. Step 3: Cross multiply
    8,945.16x = 12,343.92 × 4,966.20
  4. Step 4: Simplify right side
    8,945.16x = 61,302,375.50
  5. Step 5: Solve for x
    x = 61,302,375.50/8,945.16
  6. Step 6: Final answer
    x = 6,853.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.