Home / 13,288.24-19,934.10-4,520.80

Finding the Fourth Proportional to 13,288.24, 19,934.10 and 4,520.80

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Solution

The fourth proportional to 13,288.24, 19,934.10 and 4,520.80 is: 6,781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.24 : 19,934.10 = 4,520.80 : x
  2. Step 2: Convert to fraction form
    13,288.24/19,934.10 = 4,520.80/x
  3. Step 3: Cross multiply
    13,288.24x = 19,934.10 × 4,520.80
  4. Step 4: Simplify right side
    13,288.24x = 90,118,079.28
  5. Step 5: Solve for x
    x = 90,118,079.28/13,288.24
  6. Step 6: Final answer
    x = 6,781.79

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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.