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Finding the Fourth Proportional to 10,812.53, 14,923.68 and 7,029.11

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Solution

The fourth proportional to 10,812.53, 14,923.68 and 7,029.11 is: 9,701.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.53 : 14,923.68 = 7,029.11 : x
  2. Step 2: Convert to fraction form
    10,812.53/14,923.68 = 7,029.11/x
  3. Step 3: Cross multiply
    10,812.53x = 14,923.68 × 7,029.11
  4. Step 4: Simplify right side
    10,812.53x = 104,900,188.32
  5. Step 5: Solve for x
    x = 104,900,188.32/10,812.53
  6. Step 6: Final answer
    x = 9,701.72

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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.