Home / 19,694.88-27,178.56-10,742.40

Finding the Fourth Proportional to 19,694.88, 27,178.56 and 10,742.40

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Solution

The fourth proportional to 19,694.88, 27,178.56 and 10,742.40 is: 14,824.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,694.88 : 27,178.56 = 10,742.40 : x
  2. Step 2: Convert to fraction form
    19,694.88/27,178.56 = 10,742.40/x
  3. Step 3: Cross multiply
    19,694.88x = 27,178.56 × 10,742.40
  4. Step 4: Simplify right side
    19,694.88x = 291,962,962.94
  5. Step 5: Solve for x
    x = 291,962,962.94/19,694.88
  6. Step 6: Final answer
    x = 14,824.31

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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.