Home / 19,666.24-27,140.96-11,171.04

Finding the Fourth Proportional to 19,666.24, 27,140.96 and 11,171.04

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Solution

The fourth proportional to 19,666.24, 27,140.96 and 11,171.04 is: 15,416.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.24 : 27,140.96 = 11,171.04 : x
  2. Step 2: Convert to fraction form
    19,666.24/27,140.96 = 11,171.04/x
  3. Step 3: Cross multiply
    19,666.24x = 27,140.96 × 11,171.04
  4. Step 4: Simplify right side
    19,666.24x = 303,192,749.80
  5. Step 5: Solve for x
    x = 303,192,749.80/19,666.24
  6. Step 6: Final answer
    x = 15,416.91

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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.