Home / 18,576.39-25,610.13-13,261.98

Finding the Fourth Proportional to 18,576.39, 25,610.13 and 13,261.98

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Solution

The fourth proportional to 18,576.39, 25,610.13 and 13,261.98 is: 18,283.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576.39 : 25,610.13 = 13,261.98 : x
  2. Step 2: Convert to fraction form
    18,576.39/25,610.13 = 13,261.98/x
  3. Step 3: Cross multiply
    18,576.39x = 25,610.13 × 13,261.98
  4. Step 4: Simplify right side
    18,576.39x = 339,641,031.86
  5. Step 5: Solve for x
    x = 339,641,031.86/18,576.39
  6. Step 6: Final answer
    x = 18,283.48

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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.