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Finding the Fourth Proportional to 14,203, 21,300.90 and 4,339.72

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Solution

The fourth proportional to 14,203, 21,300.90 and 4,339.72 is: 6,508.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,203 : 21,300.90 = 4,339.72 : x
  2. Step 2: Convert to fraction form
    14,203/21,300.90 = 4,339.72/x
  3. Step 3: Cross multiply
    14,203x = 21,300.90 × 4,339.72
  4. Step 4: Simplify right side
    14,203x = 92,439,941.75
  5. Step 5: Solve for x
    x = 92,439,941.75/14,203
  6. Step 6: Final answer
    x = 6,508.48

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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.