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Finding the Fourth Proportional to 10,950.53, 15,113.93 and 7,116.80

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Solution

The fourth proportional to 10,950.53, 15,113.93 and 7,116.80 is: 9,822.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,950.53 : 15,113.93 = 7,116.80 : x
  2. Step 2: Convert to fraction form
    10,950.53/15,113.93 = 7,116.80/x
  3. Step 3: Cross multiply
    10,950.53x = 15,113.93 × 7,116.80
  4. Step 4: Simplify right side
    10,950.53x = 107,562,705.87
  5. Step 5: Solve for x
    x = 107,562,705.87/10,950.53
  6. Step 6: Final answer
    x = 9,822.61

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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.