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Finding the Fourth Proportional to 14,437.56, 21,664.98 and 8,285.88

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Solution

The fourth proportional to 14,437.56, 21,664.98 and 8,285.88 is: 12,433.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,437.56 : 21,664.98 = 8,285.88 : x
  2. Step 2: Convert to fraction form
    14,437.56/21,664.98 = 8,285.88/x
  3. Step 3: Cross multiply
    14,437.56x = 21,664.98 × 8,285.88
  4. Step 4: Simplify right side
    14,437.56x = 179,513,424.48
  5. Step 5: Solve for x
    x = 179,513,424.48/14,437.56
  6. Step 6: Final answer
    x = 12,433.78

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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.