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Finding the Fourth Proportional to 14,347.88, 21,525.88 and 4,487.28

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Solution

The fourth proportional to 14,347.88, 21,525.88 and 4,487.28 is: 6,732.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,347.88 : 21,525.88 = 4,487.28 : x
  2. Step 2: Convert to fraction form
    14,347.88/21,525.88 = 4,487.28/x
  3. Step 3: Cross multiply
    14,347.88x = 21,525.88 × 4,487.28
  4. Step 4: Simplify right side
    14,347.88x = 96,592,650.81
  5. Step 5: Solve for x
    x = 96,592,650.81/14,347.88
  6. Step 6: Final answer
    x = 6,732.19

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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.