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Finding the Fourth Proportional to 12,599.60, 18,900.32 and 4,276.24

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Solution

The fourth proportional to 12,599.60, 18,900.32 and 4,276.24 is: 6,414.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,599.60 : 18,900.32 = 4,276.24 : x
  2. Step 2: Convert to fraction form
    12,599.60/18,900.32 = 4,276.24/x
  3. Step 3: Cross multiply
    12,599.60x = 18,900.32 × 4,276.24
  4. Step 4: Simplify right side
    12,599.60x = 80,822,304.40
  5. Step 5: Solve for x
    x = 80,822,304.40/12,599.60
  6. Step 6: Final answer
    x = 6,414.67

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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.