Home / 19,874.15-27,426.83-10,921.88

Finding the Fourth Proportional to 19,874.15, 27,426.83 and 10,921.88

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Solution

The fourth proportional to 19,874.15, 27,426.83 and 10,921.88 is: 15,072.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,874.15 : 27,426.83 = 10,921.88 : x
  2. Step 2: Convert to fraction form
    19,874.15/27,426.83 = 10,921.88/x
  3. Step 3: Cross multiply
    19,874.15x = 27,426.83 × 10,921.88
  4. Step 4: Simplify right side
    19,874.15x = 299,552,354.30
  5. Step 5: Solve for x
    x = 299,552,354.30/19,874.15
  6. Step 6: Final answer
    x = 15,072.46

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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.