Home / 19,872.14-27,423.54-10,919.63

Finding the Fourth Proportional to 19,872.14, 27,423.54 and 10,919.63

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Solution

The fourth proportional to 19,872.14, 27,423.54 and 10,919.63 is: 15,069.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.14 : 27,423.54 = 10,919.63 : x
  2. Step 2: Convert to fraction form
    19,872.14/27,423.54 = 10,919.63/x
  3. Step 3: Cross multiply
    19,872.14x = 27,423.54 × 10,919.63
  4. Step 4: Simplify right side
    19,872.14x = 299,454,910.09
  5. Step 5: Solve for x
    x = 299,454,910.09/19,872.14
  6. Step 6: Final answer
    x = 15,069.08

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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.