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Finding the Fourth Proportional to 18,804.60, 28,207.86 and 4,953.24

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Solution

The fourth proportional to 18,804.60, 28,207.86 and 4,953.24 is: 7,430.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.60 : 28,207.86 = 4,953.24 : x
  2. Step 2: Convert to fraction form
    18,804.60/28,207.86 = 4,953.24/x
  3. Step 3: Cross multiply
    18,804.60x = 28,207.86 × 4,953.24
  4. Step 4: Simplify right side
    18,804.60x = 139,720,300.47
  5. Step 5: Solve for x
    x = 139,720,300.47/18,804.60
  6. Step 6: Final answer
    x = 7,430.11

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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.