Home / 12,349.80-18,519.23-8,872.47

Finding the Fourth Proportional to 12,349.80, 18,519.23 and 8,872.47

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Solution

The fourth proportional to 12,349.80, 18,519.23 and 8,872.47 is: 13,304.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,349.80 : 18,519.23 = 8,872.47 : x
  2. Step 2: Convert to fraction form
    12,349.80/18,519.23 = 8,872.47/x
  3. Step 3: Cross multiply
    12,349.80x = 18,519.23 × 8,872.47
  4. Step 4: Simplify right side
    12,349.80x = 164,311,268.24
  5. Step 5: Solve for x
    x = 164,311,268.24/12,349.80
  6. Step 6: Final answer
    x = 13,304.77

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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.