Home / 18,973.05-28,457.34-11,932.29

Finding the Fourth Proportional to 18,973.05, 28,457.34 and 11,932.29

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Solution

The fourth proportional to 18,973.05, 28,457.34 and 11,932.29 is: 17,897.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,973.05 : 28,457.34 = 11,932.29 : x
  2. Step 2: Convert to fraction form
    18,973.05/28,457.34 = 11,932.29/x
  3. Step 3: Cross multiply
    18,973.05x = 28,457.34 × 11,932.29
  4. Step 4: Simplify right side
    18,973.05x = 339,561,233.51
  5. Step 5: Solve for x
    x = 339,561,233.51/18,973.05
  6. Step 6: Final answer
    x = 17,897.03

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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.