Home / 19,834.50-27,353.68-13,126.79

Finding the Fourth Proportional to 19,834.50, 27,353.68 and 13,126.79

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Solution

The fourth proportional to 19,834.50, 27,353.68 and 13,126.79 is: 18,103.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,834.50 : 27,353.68 = 13,126.79 : x
  2. Step 2: Convert to fraction form
    19,834.50/27,353.68 = 13,126.79/x
  3. Step 3: Cross multiply
    19,834.50x = 27,353.68 × 13,126.79
  4. Step 4: Simplify right side
    19,834.50x = 359,066,048.65
  5. Step 5: Solve for x
    x = 359,066,048.65/19,834.50
  6. Step 6: Final answer
    x = 18,103.10

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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.