Home / 13,997.43-20,997.05-4,638.08

Finding the Fourth Proportional to 13,997.43, 20,997.05 and 4,638.08

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Solution

The fourth proportional to 13,997.43, 20,997.05 and 4,638.08 is: 6,957.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.43 : 20,997.05 = 4,638.08 : x
  2. Step 2: Convert to fraction form
    13,997.43/20,997.05 = 4,638.08/x
  3. Step 3: Cross multiply
    13,997.43x = 20,997.05 × 4,638.08
  4. Step 4: Simplify right side
    13,997.43x = 97,385,869.49
  5. Step 5: Solve for x
    x = 97,385,869.49/13,997.43
  6. Step 6: Final answer
    x = 6,957.41

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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.