Home / 18,509.51-25,520.67-12,849.03

Finding the Fourth Proportional to 18,509.51, 25,520.67 and 12,849.03

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Solution

The fourth proportional to 18,509.51, 25,520.67 and 12,849.03 is: 17,716.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.51 : 25,520.67 = 12,849.03 : x
  2. Step 2: Convert to fraction form
    18,509.51/25,520.67 = 12,849.03/x
  3. Step 3: Cross multiply
    18,509.51x = 25,520.67 × 12,849.03
  4. Step 4: Simplify right side
    18,509.51x = 327,915,854.45
  5. Step 5: Solve for x
    x = 327,915,854.45/18,509.51
  6. Step 6: Final answer
    x = 17,716.07

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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.