Home / 17,613.54-26,420.67-7,218.90

Finding the Fourth Proportional to 17,613.54, 26,420.67 and 7,218.90

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Solution

The fourth proportional to 17,613.54, 26,420.67 and 7,218.90 is: 10,828.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,613.54 : 26,420.67 = 7,218.90 : x
  2. Step 2: Convert to fraction form
    17,613.54/26,420.67 = 7,218.90/x
  3. Step 3: Cross multiply
    17,613.54x = 26,420.67 × 7,218.90
  4. Step 4: Simplify right side
    17,613.54x = 190,728,174.66
  5. Step 5: Solve for x
    x = 190,728,174.66/17,613.54
  6. Step 6: Final answer
    x = 10,828.50

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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.