Home / 19,571.04-27,007.44-11,187.12

Finding the Fourth Proportional to 19,571.04, 27,007.44 and 11,187.12

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Solution

The fourth proportional to 19,571.04, 27,007.44 and 11,187.12 is: 15,437.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,571.04 : 27,007.44 = 11,187.12 : x
  2. Step 2: Convert to fraction form
    19,571.04/27,007.44 = 11,187.12/x
  3. Step 3: Cross multiply
    19,571.04x = 27,007.44 × 11,187.12
  4. Step 4: Simplify right side
    19,571.04x = 302,135,472.17
  5. Step 5: Solve for x
    x = 302,135,472.17/19,571.04
  6. Step 6: Final answer
    x = 15,437.89

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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.