Home / 19,809.72-27,337.41-10,857.51

Finding the Fourth Proportional to 19,809.72, 27,337.41 and 10,857.51

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Solution

The fourth proportional to 19,809.72, 27,337.41 and 10,857.51 is: 14,983.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.72 : 27,337.41 = 10,857.51 : x
  2. Step 2: Convert to fraction form
    19,809.72/27,337.41 = 10,857.51/x
  3. Step 3: Cross multiply
    19,809.72x = 27,337.41 × 10,857.51
  4. Step 4: Simplify right side
    19,809.72x = 296,816,202.45
  5. Step 5: Solve for x
    x = 296,816,202.45/19,809.72
  6. Step 6: Final answer
    x = 14,983.36

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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.