Home / 19,864.42-27,412.79-10,789.68

Finding the Fourth Proportional to 19,864.42, 27,412.79 and 10,789.68

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Solution

The fourth proportional to 19,864.42, 27,412.79 and 10,789.68 is: 14,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.42 : 27,412.79 = 10,789.68 : x
  2. Step 2: Convert to fraction form
    19,864.42/27,412.79 = 10,789.68/x
  3. Step 3: Cross multiply
    19,864.42x = 27,412.79 × 10,789.68
  4. Step 4: Simplify right side
    19,864.42x = 295,775,232.01
  5. Step 5: Solve for x
    x = 295,775,232.01/19,864.42
  6. Step 6: Final answer
    x = 14,889.70

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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.