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Finding the Fourth Proportional to 6,666.63, 9,994.55 and 2,773.95

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Solution

The fourth proportional to 6,666.63, 9,994.55 and 2,773.95 is: 4,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.63 : 9,994.55 = 2,773.95 : x
  2. Step 2: Convert to fraction form
    6,666.63/9,994.55 = 2,773.95/x
  3. Step 3: Cross multiply
    6,666.63x = 9,994.55 × 2,773.95
  4. Step 4: Simplify right side
    6,666.63x = 27,724,368.10
  5. Step 5: Solve for x
    x = 27,724,368.10/6,666.63
  6. Step 6: Final answer
    x = 4,158.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.