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Finding the Fourth Proportional to 8,405.76, 11,602.14 and 4,868.52

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Solution

The fourth proportional to 8,405.76, 11,602.14 and 4,868.52 is: 6,719.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405.76 : 11,602.14 = 4,868.52 : x
  2. Step 2: Convert to fraction form
    8,405.76/11,602.14 = 4,868.52/x
  3. Step 3: Cross multiply
    8,405.76x = 11,602.14 × 4,868.52
  4. Step 4: Simplify right side
    8,405.76x = 56,485,250.63
  5. Step 5: Solve for x
    x = 56,485,250.63/8,405.76
  6. Step 6: Final answer
    x = 6,719.83

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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.