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Finding the Fourth Proportional to 11,373.80, 17,060.70 and 11,143.40

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Solution

The fourth proportional to 11,373.80, 17,060.70 and 11,143.40 is: 16,715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,373.80 : 17,060.70 = 11,143.40 : x
  2. Step 2: Convert to fraction form
    11,373.80/17,060.70 = 11,143.40/x
  3. Step 3: Cross multiply
    11,373.80x = 17,060.70 × 11,143.40
  4. Step 4: Simplify right side
    11,373.80x = 190,114,204.38
  5. Step 5: Solve for x
    x = 190,114,204.38/11,373.80
  6. Step 6: Final answer
    x = 16,715.10

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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.