Home / 15,458.72-21,333.03-8,744.21

Finding the Fourth Proportional to 15,458.72, 21,333.03 and 8,744.21

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Solution

The fourth proportional to 15,458.72, 21,333.03 and 8,744.21 is: 12,067.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,458.72 : 21,333.03 = 8,744.21 : x
  2. Step 2: Convert to fraction form
    15,458.72/21,333.03 = 8,744.21/x
  3. Step 3: Cross multiply
    15,458.72x = 21,333.03 × 8,744.21
  4. Step 4: Simplify right side
    15,458.72x = 186,540,387.59
  5. Step 5: Solve for x
    x = 186,540,387.59/15,458.72
  6. Step 6: Final answer
    x = 12,067.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.