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Finding the Fourth Proportional to 14,437.30, 21,662.63 and 7,855.64

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Solution

The fourth proportional to 14,437.30, 21,662.63 and 7,855.64 is: 11,787.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,437.30 : 21,662.63 = 7,855.64 : x
  2. Step 2: Convert to fraction form
    14,437.30/21,662.63 = 7,855.64/x
  3. Step 3: Cross multiply
    14,437.30x = 21,662.63 × 7,855.64
  4. Step 4: Simplify right side
    14,437.30x = 170,173,822.73
  5. Step 5: Solve for x
    x = 170,173,822.73/14,437.30
  6. Step 6: Final answer
    x = 11,787.09

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1.5x scale

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.