Home / 10,288.69-15,416.82-7,954.41

Finding the Fourth Proportional to 10,288.69, 15,416.82 and 7,954.41

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Solution

The fourth proportional to 10,288.69, 15,416.82 and 7,954.41 is: 11,919.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,288.69 : 15,416.82 = 7,954.41 : x
  2. Step 2: Convert to fraction form
    10,288.69/15,416.82 = 7,954.41/x
  3. Step 3: Cross multiply
    10,288.69x = 15,416.82 × 7,954.41
  4. Step 4: Simplify right side
    10,288.69x = 122,631,649.36
  5. Step 5: Solve for x
    x = 122,631,649.36/10,288.69
  6. Step 6: Final answer
    x = 11,919.07

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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.