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Finding the Fourth Proportional to 9,612.77, 13,268.03 and 5,423.45

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Solution

The fourth proportional to 9,612.77, 13,268.03 and 5,423.45 is: 7,485.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,612.77 : 13,268.03 = 5,423.45 : x
  2. Step 2: Convert to fraction form
    9,612.77/13,268.03 = 5,423.45/x
  3. Step 3: Cross multiply
    9,612.77x = 13,268.03 × 5,423.45
  4. Step 4: Simplify right side
    9,612.77x = 71,958,444.52
  5. Step 5: Solve for x
    x = 71,958,444.52/9,612.77
  6. Step 6: Final answer
    x = 7,485.72

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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.