Home / 19,874.38-27,426.09-10,921.88

Finding the Fourth Proportional to 19,874.38, 27,426.09 and 10,921.88

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Solution

The fourth proportional to 19,874.38, 27,426.09 and 10,921.88 is: 15,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,874.38 : 27,426.09 = 10,921.88 : x
  2. Step 2: Convert to fraction form
    19,874.38/27,426.09 = 10,921.88/x
  3. Step 3: Cross multiply
    19,874.38x = 27,426.09 × 10,921.88
  4. Step 4: Simplify right side
    19,874.38x = 299,544,532.41
  5. Step 5: Solve for x
    x = 299,544,532.41/19,874.38
  6. Step 6: Final answer
    x = 15,071.90

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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.