Home / 19,570.75-27,007.64-11,187.43

Finding the Fourth Proportional to 19,570.75, 27,007.64 and 11,187.43

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Solution

The fourth proportional to 19,570.75, 27,007.64 and 11,187.43 is: 15,438.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,570.75 : 27,007.64 = 11,187.43 : x
  2. Step 2: Convert to fraction form
    19,570.75/27,007.64 = 11,187.43/x
  3. Step 3: Cross multiply
    19,570.75x = 27,007.64 × 11,187.43
  4. Step 4: Simplify right side
    19,570.75x = 302,146,081.97
  5. Step 5: Solve for x
    x = 302,146,081.97/19,570.75
  6. Step 6: Final answer
    x = 15,438.66

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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.