Home / 18,331.36-27,501.84-7,801.72

Finding the Fourth Proportional to 18,331.36, 27,501.84 and 7,801.72

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Solution

The fourth proportional to 18,331.36, 27,501.84 and 7,801.72 is: 11,704.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.36 : 27,501.84 = 7,801.72 : x
  2. Step 2: Convert to fraction form
    18,331.36/27,501.84 = 7,801.72/x
  3. Step 3: Cross multiply
    18,331.36x = 27,501.84 × 7,801.72
  4. Step 4: Simplify right side
    18,331.36x = 214,561,655.16
  5. Step 5: Solve for x
    x = 214,561,655.16/18,331.36
  6. Step 6: Final answer
    x = 11,704.62

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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.