Home / 12,576.86-17,359.20-7,274.76

Finding the Fourth Proportional to 12,576.86, 17,359.20 and 7,274.76

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Solution

The fourth proportional to 12,576.86, 17,359.20 and 7,274.76 is: 10,040.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.86 : 17,359.20 = 7,274.76 : x
  2. Step 2: Convert to fraction form
    12,576.86/17,359.20 = 7,274.76/x
  3. Step 3: Cross multiply
    12,576.86x = 17,359.20 × 7,274.76
  4. Step 4: Simplify right side
    12,576.86x = 126,284,013.79
  5. Step 5: Solve for x
    x = 126,284,013.79/12,576.86
  6. Step 6: Final answer
    x = 10,040.98

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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.