Home / 18,218.67-25,137.37-10,260.89

Finding the Fourth Proportional to 18,218.67, 25,137.37 and 10,260.89

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Solution

The fourth proportional to 18,218.67, 25,137.37 and 10,260.89 is: 14,157.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.67 : 25,137.37 = 10,260.89 : x
  2. Step 2: Convert to fraction form
    18,218.67/25,137.37 = 10,260.89/x
  3. Step 3: Cross multiply
    18,218.67x = 25,137.37 × 10,260.89
  4. Step 4: Simplify right side
    18,218.67x = 257,931,911.26
  5. Step 5: Solve for x
    x = 257,931,911.26/18,218.67
  6. Step 6: Final answer
    x = 14,157.56

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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.