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Finding the Fourth Proportional to 8,695.44, 12,005.76 and 6,702.72

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Solution

The fourth proportional to 8,695.44, 12,005.76 and 6,702.72 is: 9,254.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,695.44 : 12,005.76 = 6,702.72 : x
  2. Step 2: Convert to fraction form
    8,695.44/12,005.76 = 6,702.72/x
  3. Step 3: Cross multiply
    8,695.44x = 12,005.76 × 6,702.72
  4. Step 4: Simplify right side
    8,695.44x = 80,471,247.67
  5. Step 5: Solve for x
    x = 80,471,247.67/8,695.44
  6. Step 6: Final answer
    x = 9,254.42

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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.