Home / 14,439.26-19,930.56-9,135.79

Finding the Fourth Proportional to 14,439.26, 19,930.56 and 9,135.79

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Solution

The fourth proportional to 14,439.26, 19,930.56 and 9,135.79 is: 12,610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,439.26 : 19,930.56 = 9,135.79 : x
  2. Step 2: Convert to fraction form
    14,439.26/19,930.56 = 9,135.79/x
  3. Step 3: Cross multiply
    14,439.26x = 19,930.56 × 9,135.79
  4. Step 4: Simplify right side
    14,439.26x = 182,081,326.66
  5. Step 5: Solve for x
    x = 182,081,326.66/14,439.26
  6. Step 6: Final answer
    x = 12,610.15

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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.