Home / 18,726.51-28,086.89-5,576.79

Finding the Fourth Proportional to 18,726.51, 28,086.89 and 5,576.79

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Solution

The fourth proportional to 18,726.51, 28,086.89 and 5,576.79 is: 8,364.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,726.51 : 28,086.89 = 5,576.79 : x
  2. Step 2: Convert to fraction form
    18,726.51/28,086.89 = 5,576.79/x
  3. Step 3: Cross multiply
    18,726.51x = 28,086.89 × 5,576.79
  4. Step 4: Simplify right side
    18,726.51x = 156,634,659.40
  5. Step 5: Solve for x
    x = 156,634,659.40/18,726.51
  6. Step 6: Final answer
    x = 8,364.33

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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.