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Finding the Fourth Proportional to 13,312.08, 19,960.92 and 4,076.88

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Solution

The fourth proportional to 13,312.08, 19,960.92 and 4,076.88 is: 6,113.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.08 : 19,960.92 = 4,076.88 : x
  2. Step 2: Convert to fraction form
    13,312.08/19,960.92 = 4,076.88/x
  3. Step 3: Cross multiply
    13,312.08x = 19,960.92 × 4,076.88
  4. Step 4: Simplify right side
    13,312.08x = 81,378,275.53
  5. Step 5: Solve for x
    x = 81,378,275.53/13,312.08
  6. Step 6: Final answer
    x = 6,113.11

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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.