Home / 18,649.41-25,739.64-10,691.70

Finding the Fourth Proportional to 18,649.41, 25,739.64 and 10,691.70

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Solution

The fourth proportional to 18,649.41, 25,739.64 and 10,691.70 is: 14,756.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,649.41 : 25,739.64 = 10,691.70 : x
  2. Step 2: Convert to fraction form
    18,649.41/25,739.64 = 10,691.70/x
  3. Step 3: Cross multiply
    18,649.41x = 25,739.64 × 10,691.70
  4. Step 4: Simplify right side
    18,649.41x = 275,200,508.99
  5. Step 5: Solve for x
    x = 275,200,508.99/18,649.41
  6. Step 6: Final answer
    x = 14,756.53

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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.