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Finding the Fourth Proportional to 14,344.34, 21,511.64 and 4,981.88

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Solution

The fourth proportional to 14,344.34, 21,511.64 and 4,981.88 is: 7,471.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,344.34 : 21,511.64 = 4,981.88 : x
  2. Step 2: Convert to fraction form
    14,344.34/21,511.64 = 4,981.88/x
  3. Step 3: Cross multiply
    14,344.34x = 21,511.64 × 4,981.88
  4. Step 4: Simplify right side
    14,344.34x = 107,168,475.32
  5. Step 5: Solve for x
    x = 107,168,475.32/14,344.34
  6. Step 6: Final answer
    x = 7,471.14

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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.