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Finding the Fourth Proportional to 10,412.35, 15,693.47 and 8,968.93

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Solution

The fourth proportional to 10,412.35, 15,693.47 and 8,968.93 is: 13,517.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,412.35 : 15,693.47 = 8,968.93 : x
  2. Step 2: Convert to fraction form
    10,412.35/15,693.47 = 8,968.93/x
  3. Step 3: Cross multiply
    10,412.35x = 15,693.47 × 8,968.93
  4. Step 4: Simplify right side
    10,412.35x = 140,753,633.89
  5. Step 5: Solve for x
    x = 140,753,633.89/10,412.35
  6. Step 6: Final answer
    x = 13,517.95

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.