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Finding the Fourth Proportional to 18,322.32, 27,472.68 and 6,470.40

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Solution

The fourth proportional to 18,322.32, 27,472.68 and 6,470.40 is: 9,701.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.32 : 27,472.68 = 6,470.40 : x
  2. Step 2: Convert to fraction form
    18,322.32/27,472.68 = 6,470.40/x
  3. Step 3: Cross multiply
    18,322.32x = 27,472.68 × 6,470.40
  4. Step 4: Simplify right side
    18,322.32x = 177,759,228.67
  5. Step 5: Solve for x
    x = 177,759,228.67/18,322.32
  6. Step 6: Final answer
    x = 9,701.79

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