Home / 13,454.26-18,566.62-7,485.91

Finding the Fourth Proportional to 13,454.26, 18,566.62 and 7,485.91

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Solution

The fourth proportional to 13,454.26, 18,566.62 and 7,485.91 is: 10,330.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,454.26 : 18,566.62 = 7,485.91 : x
  2. Step 2: Convert to fraction form
    13,454.26/18,566.62 = 7,485.91/x
  3. Step 3: Cross multiply
    13,454.26x = 18,566.62 × 7,485.91
  4. Step 4: Simplify right side
    13,454.26x = 138,988,046.32
  5. Step 5: Solve for x
    x = 138,988,046.32/13,454.26
  6. Step 6: Final answer
    x = 10,330.41

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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.