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Finding the Fourth Proportional to 14,102.92, 21,154.92 and 4,243.60

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Solution

The fourth proportional to 14,102.92, 21,154.92 and 4,243.60 is: 6,365.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,102.92 : 21,154.92 = 4,243.60 : x
  2. Step 2: Convert to fraction form
    14,102.92/21,154.92 = 4,243.60/x
  3. Step 3: Cross multiply
    14,102.92x = 21,154.92 × 4,243.60
  4. Step 4: Simplify right side
    14,102.92x = 89,773,018.51
  5. Step 5: Solve for x
    x = 89,773,018.51/14,102.92
  6. Step 6: Final answer
    x = 6,365.56

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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.