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Finding the Fourth Proportional to 8,340.90, 11,510.15 and 4,982.93

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Solution

The fourth proportional to 8,340.90, 11,510.15 and 4,982.93 is: 6,876.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.90 : 11,510.15 = 4,982.93 : x
  2. Step 2: Convert to fraction form
    8,340.90/11,510.15 = 4,982.93/x
  3. Step 3: Cross multiply
    8,340.90x = 11,510.15 × 4,982.93
  4. Step 4: Simplify right side
    8,340.90x = 57,354,271.74
  5. Step 5: Solve for x
    x = 57,354,271.74/8,340.90
  6. Step 6: Final answer
    x = 6,876.27

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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.