Home / 14,606.60-20,154.10-8,638.44

Finding the Fourth Proportional to 14,606.60, 20,154.10 and 8,638.44

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Solution

The fourth proportional to 14,606.60, 20,154.10 and 8,638.44 is: 11,919.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,606.60 : 20,154.10 = 8,638.44 : x
  2. Step 2: Convert to fraction form
    14,606.60/20,154.10 = 8,638.44/x
  3. Step 3: Cross multiply
    14,606.60x = 20,154.10 × 8,638.44
  4. Step 4: Simplify right side
    14,606.60x = 174,099,983.60
  5. Step 5: Solve for x
    x = 174,099,983.60/14,606.60
  6. Step 6: Final answer
    x = 11,919.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.