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Finding the Fourth Proportional to 14,248.28, 21,374.04 and 4,889

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Solution

The fourth proportional to 14,248.28, 21,374.04 and 4,889 is: 7,334.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,248.28 : 21,374.04 = 4,889 : x
  2. Step 2: Convert to fraction form
    14,248.28/21,374.04 = 4,889/x
  3. Step 3: Cross multiply
    14,248.28x = 21,374.04 × 4,889
  4. Step 4: Simplify right side
    14,248.28x = 104,497,681.56
  5. Step 5: Solve for x
    x = 104,497,681.56/14,248.28
  6. Step 6: Final answer
    x = 7,334.06

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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.