Home / 19,639.62-27,103.26-10,687.71

Finding the Fourth Proportional to 19,639.62, 27,103.26 and 10,687.71

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Solution

The fourth proportional to 19,639.62, 27,103.26 and 10,687.71 is: 14,749.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.62 : 27,103.26 = 10,687.71 : x
  2. Step 2: Convert to fraction form
    19,639.62/27,103.26 = 10,687.71/x
  3. Step 3: Cross multiply
    19,639.62x = 27,103.26 × 10,687.71
  4. Step 4: Simplify right side
    19,639.62x = 289,671,782.93
  5. Step 5: Solve for x
    x = 289,671,782.93/19,639.62
  6. Step 6: Final answer
    x = 14,749.36

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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.