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Finding the Fourth Proportional to 14,848, 20,490.30 and 8,224

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Solution

The fourth proportional to 14,848, 20,490.30 and 8,224 is: 11,349.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,848 : 20,490.30 = 8,224 : x
  2. Step 2: Convert to fraction form
    14,848/20,490.30 = 8,224/x
  3. Step 3: Cross multiply
    14,848x = 20,490.30 × 8,224
  4. Step 4: Simplify right side
    14,848x = 168,512,227.20
  5. Step 5: Solve for x
    x = 168,512,227.20/14,848
  6. Step 6: Final answer
    x = 11,349.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.