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Finding the Fourth Proportional to 8,820.74, 12,172.95 and 4,841.82

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Solution

The fourth proportional to 8,820.74, 12,172.95 and 4,841.82 is: 6,681.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.74 : 12,172.95 = 4,841.82 : x
  2. Step 2: Convert to fraction form
    8,820.74/12,172.95 = 4,841.82/x
  3. Step 3: Cross multiply
    8,820.74x = 12,172.95 × 4,841.82
  4. Step 4: Simplify right side
    8,820.74x = 58,939,232.77
  5. Step 5: Solve for x
    x = 58,939,232.77/8,820.74
  6. Step 6: Final answer
    x = 6,681.89

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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.