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Finding the Fourth Proportional to 18,802.56, 28,204.08 and 4,951.44

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Solution

The fourth proportional to 18,802.56, 28,204.08 and 4,951.44 is: 7,427.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802.56 : 28,204.08 = 4,951.44 : x
  2. Step 2: Convert to fraction form
    18,802.56/28,204.08 = 4,951.44/x
  3. Step 3: Cross multiply
    18,802.56x = 28,204.08 × 4,951.44
  4. Step 4: Simplify right side
    18,802.56x = 139,650,809.88
  5. Step 5: Solve for x
    x = 139,650,809.88/18,802.56
  6. Step 6: Final answer
    x = 7,427.22

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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.