Home / 13,959.51-19,269.18-9,245.31

Finding the Fourth Proportional to 13,959.51, 19,269.18 and 9,245.31

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Solution

The fourth proportional to 13,959.51, 19,269.18 and 9,245.31 is: 12,761.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959.51 : 19,269.18 = 9,245.31 : x
  2. Step 2: Convert to fraction form
    13,959.51/19,269.18 = 9,245.31/x
  3. Step 3: Cross multiply
    13,959.51x = 19,269.18 × 9,245.31
  4. Step 4: Simplify right side
    13,959.51x = 178,149,542.55
  5. Step 5: Solve for x
    x = 178,149,542.55/13,959.51
  6. Step 6: Final answer
    x = 12,761.88

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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.