Home / 11,681.46-17,438.97-11,271.36

Finding the Fourth Proportional to 11,681.46, 17,438.97 and 11,271.36

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Solution

The fourth proportional to 11,681.46, 17,438.97 and 11,271.36 is: 16,826.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.46 : 17,438.97 = 11,271.36 : x
  2. Step 2: Convert to fraction form
    11,681.46/17,438.97 = 11,271.36/x
  3. Step 3: Cross multiply
    11,681.46x = 17,438.97 × 11,271.36
  4. Step 4: Simplify right side
    11,681.46x = 196,560,908.90
  5. Step 5: Solve for x
    x = 196,560,908.90/11,681.46
  6. Step 6: Final answer
    x = 16,826.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.