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Finding the Fourth Proportional to 15,213.60, 22,818.60 and 4,119.60

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Solution

The fourth proportional to 15,213.60, 22,818.60 and 4,119.60 is: 6,178.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213.60 : 22,818.60 = 4,119.60 : x
  2. Step 2: Convert to fraction form
    15,213.60/22,818.60 = 4,119.60/x
  3. Step 3: Cross multiply
    15,213.60x = 22,818.60 × 4,119.60
  4. Step 4: Simplify right side
    15,213.60x = 94,003,504.56
  5. Step 5: Solve for x
    x = 94,003,504.56/15,213.60
  6. Step 6: Final answer
    x = 6,178.91

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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.