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Finding the Fourth Proportional to 8,395.64, 12,520.10 and 7,360.44

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Solution

The fourth proportional to 8,395.64, 12,520.10 and 7,360.44 is: 10,976.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,395.64 : 12,520.10 = 7,360.44 : x
  2. Step 2: Convert to fraction form
    8,395.64/12,520.10 = 7,360.44/x
  3. Step 3: Cross multiply
    8,395.64x = 12,520.10 × 7,360.44
  4. Step 4: Simplify right side
    8,395.64x = 92,153,444.84
  5. Step 5: Solve for x
    x = 92,153,444.84/8,395.64
  6. Step 6: Final answer
    x = 10,976.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.