Home / 19,694.20-27,178.04-12,624.72

Finding the Fourth Proportional to 19,694.20, 27,178.04 and 12,624.72

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Solution

The fourth proportional to 19,694.20, 27,178.04 and 12,624.72 is: 17,422.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,694.20 : 27,178.04 = 12,624.72 : x
  2. Step 2: Convert to fraction form
    19,694.20/27,178.04 = 12,624.72/x
  3. Step 3: Cross multiply
    19,694.20x = 27,178.04 × 12,624.72
  4. Step 4: Simplify right side
    19,694.20x = 343,115,145.15
  5. Step 5: Solve for x
    x = 343,115,145.15/19,694.20
  6. Step 6: Final answer
    x = 17,422.14

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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.