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Finding the Fourth Proportional to 12,583.60, 18,878.22 and 4,263.16

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Solution

The fourth proportional to 12,583.60, 18,878.22 and 4,263.16 is: 6,395.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,583.60 : 18,878.22 = 4,263.16 : x
  2. Step 2: Convert to fraction form
    12,583.60/18,878.22 = 4,263.16/x
  3. Step 3: Cross multiply
    12,583.60x = 18,878.22 × 4,263.16
  4. Step 4: Simplify right side
    12,583.60x = 80,480,872.38
  5. Step 5: Solve for x
    x = 80,480,872.38/12,583.60
  6. Step 6: Final answer
    x = 6,395.70

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1.5x scale

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.