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Finding the Fourth Proportional to 10,318.61, 14,239.74 and 5,602.89

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Solution

The fourth proportional to 10,318.61, 14,239.74 and 5,602.89 is: 7,732.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.61 : 14,239.74 = 5,602.89 : x
  2. Step 2: Convert to fraction form
    10,318.61/14,239.74 = 5,602.89/x
  3. Step 3: Cross multiply
    10,318.61x = 14,239.74 × 5,602.89
  4. Step 4: Simplify right side
    10,318.61x = 79,783,696.85
  5. Step 5: Solve for x
    x = 79,783,696.85/10,318.61
  6. Step 6: Final answer
    x = 7,732.02

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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.