Home / 19,708.71-27,198.11-10,756.40

Finding the Fourth Proportional to 19,708.71, 27,198.11 and 10,756.40

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Solution

The fourth proportional to 19,708.71, 27,198.11 and 10,756.40 is: 14,843.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,708.71 : 27,198.11 = 10,756.40 : x
  2. Step 2: Convert to fraction form
    19,708.71/27,198.11 = 10,756.40/x
  3. Step 3: Cross multiply
    19,708.71x = 27,198.11 × 10,756.40
  4. Step 4: Simplify right side
    19,708.71x = 292,553,845.29
  5. Step 5: Solve for x
    x = 292,553,845.29/19,708.71
  6. Step 6: Final answer
    x = 14,843.89

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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.