Home / 17,400.99-26,079.60-12,480.24

Finding the Fourth Proportional to 17,400.99, 26,079.60 and 12,480.24

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Solution

The fourth proportional to 17,400.99, 26,079.60 and 12,480.24 is: 18,704.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,400.99 : 26,079.60 = 12,480.24 : x
  2. Step 2: Convert to fraction form
    17,400.99/26,079.60 = 12,480.24/x
  3. Step 3: Cross multiply
    17,400.99x = 26,079.60 × 12,480.24
  4. Step 4: Simplify right side
    17,400.99x = 325,479,667.10
  5. Step 5: Solve for x
    x = 325,479,667.10/17,400.99
  6. Step 6: Final answer
    x = 18,704.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.