Home / 10,887.48-16,334.39-3,491.78

Finding the Fourth Proportional to 10,887.48, 16,334.39 and 3,491.78

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Solution

The fourth proportional to 10,887.48, 16,334.39 and 3,491.78 is: 5,238.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.48 : 16,334.39 = 3,491.78 : x
  2. Step 2: Convert to fraction form
    10,887.48/16,334.39 = 3,491.78/x
  3. Step 3: Cross multiply
    10,887.48x = 16,334.39 × 3,491.78
  4. Step 4: Simplify right side
    10,887.48x = 57,036,023.37
  5. Step 5: Solve for x
    x = 57,036,023.37/10,887.48
  6. Step 6: Final answer
    x = 5,238.68

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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.