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Finding the Fourth Proportional to 10,512, 15,759.45 and 4,274.93

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Solution

The fourth proportional to 10,512, 15,759.45 and 4,274.93 is: 6,408.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512 : 15,759.45 = 4,274.93 : x
  2. Step 2: Convert to fraction form
    10,512/15,759.45 = 4,274.93/x
  3. Step 3: Cross multiply
    10,512x = 15,759.45 × 4,274.93
  4. Step 4: Simplify right side
    10,512x = 67,370,466.79
  5. Step 5: Solve for x
    x = 67,370,466.79/10,512
  6. Step 6: Final answer
    x = 6,408.91

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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.