Home / 15,080.48-20,810.82-8,274.56

Finding the Fourth Proportional to 15,080.48, 20,810.82 and 8,274.56

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Solution

The fourth proportional to 15,080.48, 20,810.82 and 8,274.56 is: 11,418.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,080.48 : 20,810.82 = 8,274.56 : x
  2. Step 2: Convert to fraction form
    15,080.48/20,810.82 = 8,274.56/x
  3. Step 3: Cross multiply
    15,080.48x = 20,810.82 × 8,274.56
  4. Step 4: Simplify right side
    15,080.48x = 172,200,305.71
  5. Step 5: Solve for x
    x = 172,200,305.71/15,080.48
  6. Step 6: Final answer
    x = 11,418.76

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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.