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Finding the Fourth Proportional to 10,714.88, 14,787.24 and 6,240.08

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Solution

The fourth proportional to 10,714.88, 14,787.24 and 6,240.08 is: 8,611.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,714.88 : 14,787.24 = 6,240.08 : x
  2. Step 2: Convert to fraction form
    10,714.88/14,787.24 = 6,240.08/x
  3. Step 3: Cross multiply
    10,714.88x = 14,787.24 × 6,240.08
  4. Step 4: Simplify right side
    10,714.88x = 92,273,560.58
  5. Step 5: Solve for x
    x = 92,273,560.58/10,714.88
  6. Step 6: Final answer
    x = 8,611.72

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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.