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Finding the Fourth Proportional to 12,710.89, 18,975.08 and 11,050.13

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Solution

The fourth proportional to 12,710.89, 18,975.08 and 11,050.13 is: 16,495.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710.89 : 18,975.08 = 11,050.13 : x
  2. Step 2: Convert to fraction form
    12,710.89/18,975.08 = 11,050.13/x
  3. Step 3: Cross multiply
    12,710.89x = 18,975.08 × 11,050.13
  4. Step 4: Simplify right side
    12,710.89x = 209,677,100.76
  5. Step 5: Solve for x
    x = 209,677,100.76/12,710.89
  6. Step 6: Final answer
    x = 16,495.86

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.