Home / 19,694.63-27,178.47-10,742.09

Finding the Fourth Proportional to 19,694.63, 27,178.47 and 10,742.09

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Solution

The fourth proportional to 19,694.63, 27,178.47 and 10,742.09 is: 14,824.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,694.63 : 27,178.47 = 10,742.09 : x
  2. Step 2: Convert to fraction form
    19,694.63/27,178.47 = 10,742.09/x
  3. Step 3: Cross multiply
    19,694.63x = 27,178.47 × 10,742.09
  4. Step 4: Simplify right side
    19,694.63x = 291,953,570.80
  5. Step 5: Solve for x
    x = 291,953,570.80/19,694.63
  6. Step 6: Final answer
    x = 14,824.02

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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.