Home / 19,570.50-27,007.29-11,187.18

Finding the Fourth Proportional to 19,570.50, 27,007.29 and 11,187.18

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Solution

The fourth proportional to 19,570.50, 27,007.29 and 11,187.18 is: 15,438.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,570.50 : 27,007.29 = 11,187.18 : x
  2. Step 2: Convert to fraction form
    19,570.50/27,007.29 = 11,187.18/x
  3. Step 3: Cross multiply
    19,570.50x = 27,007.29 × 11,187.18
  4. Step 4: Simplify right side
    19,570.50x = 302,135,414.54
  5. Step 5: Solve for x
    x = 302,135,414.54/19,570.50
  6. Step 6: Final answer
    x = 15,438.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.