Home / 15,090.06-20,824.23-8,375.76

Finding the Fourth Proportional to 15,090.06, 20,824.23 and 8,375.76

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Solution

The fourth proportional to 15,090.06, 20,824.23 and 8,375.76 is: 11,558.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,090.06 : 20,824.23 = 8,375.76 : x
  2. Step 2: Convert to fraction form
    15,090.06/20,824.23 = 8,375.76/x
  3. Step 3: Cross multiply
    15,090.06x = 20,824.23 × 8,375.76
  4. Step 4: Simplify right side
    15,090.06x = 174,418,752.66
  5. Step 5: Solve for x
    x = 174,418,752.66/15,090.06
  6. Step 6: Final answer
    x = 11,558.52

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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.