Home / 13,519.36-18,654.88-7,550.28

Finding the Fourth Proportional to 13,519.36, 18,654.88 and 7,550.28

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Solution

The fourth proportional to 13,519.36, 18,654.88 and 7,550.28 is: 10,418.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.36 : 18,654.88 = 7,550.28 : x
  2. Step 2: Convert to fraction form
    13,519.36/18,654.88 = 7,550.28/x
  3. Step 3: Cross multiply
    13,519.36x = 18,654.88 × 7,550.28
  4. Step 4: Simplify right side
    13,519.36x = 140,849,567.37
  5. Step 5: Solve for x
    x = 140,849,567.37/13,519.36
  6. Step 6: Final answer
    x = 10,418.36

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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.