Home / 14,157.09-21,239.25-5,387.22

Finding the Fourth Proportional to 14,157.09, 21,239.25 and 5,387.22

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Solution

The fourth proportional to 14,157.09, 21,239.25 and 5,387.22 is: 8,082.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,157.09 : 21,239.25 = 5,387.22 : x
  2. Step 2: Convert to fraction form
    14,157.09/21,239.25 = 5,387.22/x
  3. Step 3: Cross multiply
    14,157.09x = 21,239.25 × 5,387.22
  4. Step 4: Simplify right side
    14,157.09x = 114,420,512.39
  5. Step 5: Solve for x
    x = 114,420,512.39/14,157.09
  6. Step 6: Final answer
    x = 8,082.21

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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.