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Finding the Fourth Proportional to 7,113.93, 9,817.79 and 4,130.70

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Solution

The fourth proportional to 7,113.93, 9,817.79 and 4,130.70 is: 5,700.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.93 : 9,817.79 = 4,130.70 : x
  2. Step 2: Convert to fraction form
    7,113.93/9,817.79 = 4,130.70/x
  3. Step 3: Cross multiply
    7,113.93x = 9,817.79 × 4,130.70
  4. Step 4: Simplify right side
    7,113.93x = 40,554,324.50
  5. Step 5: Solve for x
    x = 40,554,324.50/7,113.93
  6. Step 6: Final answer
    x = 5,700.69

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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.