Home / 12,157.51-18,222.90-4,760.59

Finding the Fourth Proportional to 12,157.51, 18,222.90 and 4,760.59

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Solution

The fourth proportional to 12,157.51, 18,222.90 and 4,760.59 is: 7,135.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.51 : 18,222.90 = 4,760.59 : x
  2. Step 2: Convert to fraction form
    12,157.51/18,222.90 = 4,760.59/x
  3. Step 3: Cross multiply
    12,157.51x = 18,222.90 × 4,760.59
  4. Step 4: Simplify right side
    12,157.51x = 86,751,755.51
  5. Step 5: Solve for x
    x = 86,751,755.51/12,157.51
  6. Step 6: Final answer
    x = 7,135.65

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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.