Home / 18,158.51-27,228.05-7,764.59

Finding the Fourth Proportional to 18,158.51, 27,228.05 and 7,764.59

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Solution

The fourth proportional to 18,158.51, 27,228.05 and 7,764.59 is: 11,642.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158.51 : 27,228.05 = 7,764.59 : x
  2. Step 2: Convert to fraction form
    18,158.51/27,228.05 = 7,764.59/x
  3. Step 3: Cross multiply
    18,158.51x = 27,228.05 × 7,764.59
  4. Step 4: Simplify right side
    18,158.51x = 211,414,605.93
  5. Step 5: Solve for x
    x = 211,414,605.93/18,158.51
  6. Step 6: Final answer
    x = 11,642.73

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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.