Home / 13,311.30-19,846.23-12,965.03

Finding the Fourth Proportional to 13,311.30, 19,846.23 and 12,965.03

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Solution

The fourth proportional to 13,311.30, 19,846.23 and 12,965.03 is: 19,329.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.30 : 19,846.23 = 12,965.03 : x
  2. Step 2: Convert to fraction form
    13,311.30/19,846.23 = 12,965.03/x
  3. Step 3: Cross multiply
    13,311.30x = 19,846.23 × 12,965.03
  4. Step 4: Simplify right side
    13,311.30x = 257,306,868.11
  5. Step 5: Solve for x
    x = 257,306,868.11/13,311.30
  6. Step 6: Final answer
    x = 19,329.96

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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.