Home / 12,899.26-19,348.89-10,318.60

Finding the Fourth Proportional to 12,899.26, 19,348.89 and 10,318.60

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Solution

The fourth proportional to 12,899.26, 19,348.89 and 10,318.60 is: 15,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,899.26 : 19,348.89 = 10,318.60 : x
  2. Step 2: Convert to fraction form
    12,899.26/19,348.89 = 10,318.60/x
  3. Step 3: Cross multiply
    12,899.26x = 19,348.89 × 10,318.60
  4. Step 4: Simplify right side
    12,899.26x = 199,653,456.35
  5. Step 5: Solve for x
    x = 199,653,456.35/12,899.26
  6. Step 6: Final answer
    x = 15,477.90

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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.