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Finding the Fourth Proportional to 14,637.43, 21,941.56 and 8,389.90

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Solution

The fourth proportional to 14,637.43, 21,941.56 and 8,389.90 is: 12,576.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,637.43 : 21,941.56 = 8,389.90 : x
  2. Step 2: Convert to fraction form
    14,637.43/21,941.56 = 8,389.90/x
  3. Step 3: Cross multiply
    14,637.43x = 21,941.56 × 8,389.90
  4. Step 4: Simplify right side
    14,637.43x = 184,087,494.24
  5. Step 5: Solve for x
    x = 184,087,494.24/14,637.43
  6. Step 6: Final answer
    x = 12,576.49

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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.