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Finding the Fourth Proportional to 14,644.40, 21,966.60 and 8,404.40

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Solution

The fourth proportional to 14,644.40, 21,966.60 and 8,404.40 is: 12,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,644.40 : 21,966.60 = 8,404.40 : x
  2. Step 2: Convert to fraction form
    14,644.40/21,966.60 = 8,404.40/x
  3. Step 3: Cross multiply
    14,644.40x = 21,966.60 × 8,404.40
  4. Step 4: Simplify right side
    14,644.40x = 184,616,093.04
  5. Step 5: Solve for x
    x = 184,616,093.04/14,644.40
  6. Step 6: Final answer
    x = 12,606.60

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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.