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Finding the Fourth Proportional to 7,671.04, 11,506.60 and 2,124.40

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Solution

The fourth proportional to 7,671.04, 11,506.60 and 2,124.40 is: 3,186.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,671.04 : 11,506.60 = 2,124.40 : x
  2. Step 2: Convert to fraction form
    7,671.04/11,506.60 = 2,124.40/x
  3. Step 3: Cross multiply
    7,671.04x = 11,506.60 × 2,124.40
  4. Step 4: Simplify right side
    7,671.04x = 24,444,621.04
  5. Step 5: Solve for x
    x = 24,444,621.04/7,671.04
  6. Step 6: Final answer
    x = 3,186.61

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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.