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Finding the Fourth Proportional to 8,290.46, 11,440.46 and 4,513.53

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Solution

The fourth proportional to 8,290.46, 11,440.46 and 4,513.53 is: 6,228.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.46 : 11,440.46 = 4,513.53 : x
  2. Step 2: Convert to fraction form
    8,290.46/11,440.46 = 4,513.53/x
  3. Step 3: Cross multiply
    8,290.46x = 11,440.46 × 4,513.53
  4. Step 4: Simplify right side
    8,290.46x = 51,636,913.61
  5. Step 5: Solve for x
    x = 51,636,913.61/8,290.46
  6. Step 6: Final answer
    x = 6,228.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.