Home / 13,451.24-20,151.42-7,612.04

Finding the Fourth Proportional to 13,451.24, 20,151.42 and 7,612.04

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Solution

The fourth proportional to 13,451.24, 20,151.42 and 7,612.04 is: 11,403.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.24 : 20,151.42 = 7,612.04 : x
  2. Step 2: Convert to fraction form
    13,451.24/20,151.42 = 7,612.04/x
  3. Step 3: Cross multiply
    13,451.24x = 20,151.42 × 7,612.04
  4. Step 4: Simplify right side
    13,451.24x = 153,393,415.10
  5. Step 5: Solve for x
    x = 153,393,415.10/13,451.24
  6. Step 6: Final answer
    x = 11,403.66

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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.