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Finding the Fourth Proportional to 12,476.16, 18,715.04 and 5,076.58

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Solution

The fourth proportional to 12,476.16, 18,715.04 and 5,076.58 is: 7,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476.16 : 18,715.04 = 5,076.58 : x
  2. Step 2: Convert to fraction form
    12,476.16/18,715.04 = 5,076.58/x
  3. Step 3: Cross multiply
    12,476.16x = 18,715.04 × 5,076.58
  4. Step 4: Simplify right side
    12,476.16x = 95,008,397.76
  5. Step 5: Solve for x
    x = 95,008,397.76/12,476.16
  6. Step 6: Final answer
    x = 7,615.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.