Home / 13,518.98-18,653.29-7,850.80

Finding the Fourth Proportional to 13,518.98, 18,653.29 and 7,850.80

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Solution

The fourth proportional to 13,518.98, 18,653.29 and 7,850.80 is: 10,832.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.98 : 18,653.29 = 7,850.80 : x
  2. Step 2: Convert to fraction form
    13,518.98/18,653.29 = 7,850.80/x
  3. Step 3: Cross multiply
    13,518.98x = 18,653.29 × 7,850.80
  4. Step 4: Simplify right side
    13,518.98x = 146,443,249.13
  5. Step 5: Solve for x
    x = 146,443,249.13/13,518.98
  6. Step 6: Final answer
    x = 10,832.42

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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.