Home / 14,197.10-21,157.25-13,769.55

Finding the Fourth Proportional to 14,197.10, 21,157.25 and 13,769.55

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Solution

The fourth proportional to 14,197.10, 21,157.25 and 13,769.55 is: 20,520.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,197.10 : 21,157.25 = 13,769.55 : x
  2. Step 2: Convert to fraction form
    14,197.10/21,157.25 = 13,769.55/x
  3. Step 3: Cross multiply
    14,197.10x = 21,157.25 × 13,769.55
  4. Step 4: Simplify right side
    14,197.10x = 291,325,742.89
  5. Step 5: Solve for x
    x = 291,325,742.89/14,197.10
  6. Step 6: Final answer
    x = 20,520.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.