Home / 14,122.05-21,186.12-4,260.51

Finding the Fourth Proportional to 14,122.05, 21,186.12 and 4,260.51

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Solution

The fourth proportional to 14,122.05, 21,186.12 and 4,260.51 is: 6,391.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.05 : 21,186.12 = 4,260.51 : x
  2. Step 2: Convert to fraction form
    14,122.05/21,186.12 = 4,260.51/x
  3. Step 3: Cross multiply
    14,122.05x = 21,186.12 × 4,260.51
  4. Step 4: Simplify right side
    14,122.05x = 90,263,676.12
  5. Step 5: Solve for x
    x = 90,263,676.12/14,122.05
  6. Step 6: Final answer
    x = 6,391.68

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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.