Home / 11,266.80-16,871.40-8,329.20

Finding the Fourth Proportional to 11,266.80, 16,871.40 and 8,329.20

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Solution

The fourth proportional to 11,266.80, 16,871.40 and 8,329.20 is: 12,472.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,266.80 : 16,871.40 = 8,329.20 : x
  2. Step 2: Convert to fraction form
    11,266.80/16,871.40 = 8,329.20/x
  3. Step 3: Cross multiply
    11,266.80x = 16,871.40 × 8,329.20
  4. Step 4: Simplify right side
    11,266.80x = 140,525,264.88
  5. Step 5: Solve for x
    x = 140,525,264.88/11,266.80
  6. Step 6: Final answer
    x = 12,472.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.