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Finding the Fourth Proportional to 8,890.04, 12,269.86 and 5,305.24

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Solution

The fourth proportional to 8,890.04, 12,269.86 and 5,305.24 is: 7,322.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.04 : 12,269.86 = 5,305.24 : x
  2. Step 2: Convert to fraction form
    8,890.04/12,269.86 = 5,305.24/x
  3. Step 3: Cross multiply
    8,890.04x = 12,269.86 × 5,305.24
  4. Step 4: Simplify right side
    8,890.04x = 65,094,552.07
  5. Step 5: Solve for x
    x = 65,094,552.07/8,890.04
  6. Step 6: Final answer
    x = 7,322.19

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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.