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Finding the Fourth Proportional to 15,201.17, 20,977.76 and 8,741.78

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Solution

The fourth proportional to 15,201.17, 20,977.76 and 8,741.78 is: 12,063.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,201.17 : 20,977.76 = 8,741.78 : x
  2. Step 2: Convert to fraction form
    15,201.17/20,977.76 = 8,741.78/x
  3. Step 3: Cross multiply
    15,201.17x = 20,977.76 × 8,741.78
  4. Step 4: Simplify right side
    15,201.17x = 183,382,962.81
  5. Step 5: Solve for x
    x = 183,382,962.81/15,201.17
  6. Step 6: Final answer
    x = 12,063.74

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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.