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Finding the Fourth Proportional to 8,336.55, 12,508.47 and 4,440

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Solution

The fourth proportional to 8,336.55, 12,508.47 and 4,440 is: 6,661.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,336.55 : 12,508.47 = 4,440 : x
  2. Step 2: Convert to fraction form
    8,336.55/12,508.47 = 4,440/x
  3. Step 3: Cross multiply
    8,336.55x = 12,508.47 × 4,440
  4. Step 4: Simplify right side
    8,336.55x = 55,537,606.80
  5. Step 5: Solve for x
    x = 55,537,606.80/8,336.55
  6. Step 6: Final answer
    x = 6,661.94

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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.