Home / 13,418.18-18,517.93-7,752.94

Finding the Fourth Proportional to 13,418.18, 18,517.93 and 7,752.94

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Solution

The fourth proportional to 13,418.18, 18,517.93 and 7,752.94 is: 10,699.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.18 : 18,517.93 = 7,752.94 : x
  2. Step 2: Convert to fraction form
    13,418.18/18,517.93 = 7,752.94/x
  3. Step 3: Cross multiply
    13,418.18x = 18,517.93 × 7,752.94
  4. Step 4: Simplify right side
    13,418.18x = 143,568,400.21
  5. Step 5: Solve for x
    x = 143,568,400.21/13,418.18
  6. Step 6: Final answer
    x = 10,699.54

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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.