Home / 13,310.80-19,845.49-12,964.53

Finding the Fourth Proportional to 13,310.80, 19,845.49 and 12,964.53

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Solution

The fourth proportional to 13,310.80, 19,845.49 and 12,964.53 is: 19,329.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.80 : 19,845.49 = 12,964.53 : x
  2. Step 2: Convert to fraction form
    13,310.80/19,845.49 = 12,964.53/x
  3. Step 3: Cross multiply
    13,310.80x = 19,845.49 × 12,964.53
  4. Step 4: Simplify right side
    13,310.80x = 257,287,450.47
  5. Step 5: Solve for x
    x = 257,287,450.47/13,310.80
  6. Step 6: Final answer
    x = 19,329.23

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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.