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Finding the Fourth Proportional to 7,493.15, 10,330.94 and 6,143.81

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Solution

The fourth proportional to 7,493.15, 10,330.94 and 6,143.81 is: 8,470.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,493.15 : 10,330.94 = 6,143.81 : x
  2. Step 2: Convert to fraction form
    7,493.15/10,330.94 = 6,143.81/x
  3. Step 3: Cross multiply
    7,493.15x = 10,330.94 × 6,143.81
  4. Step 4: Simplify right side
    7,493.15x = 63,471,296.19
  5. Step 5: Solve for x
    x = 63,471,296.19/7,493.15
  6. Step 6: Final answer
    x = 8,470.57

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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.