Home / 16,911.48-25,362.09-5,811.78

Finding the Fourth Proportional to 16,911.48, 25,362.09 and 5,811.78

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Solution

The fourth proportional to 16,911.48, 25,362.09 and 5,811.78 is: 8,715.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,911.48 : 25,362.09 = 5,811.78 : x
  2. Step 2: Convert to fraction form
    16,911.48/25,362.09 = 5,811.78/x
  3. Step 3: Cross multiply
    16,911.48x = 25,362.09 × 5,811.78
  4. Step 4: Simplify right side
    16,911.48x = 147,398,887.42
  5. Step 5: Solve for x
    x = 147,398,887.42/16,911.48
  6. Step 6: Final answer
    x = 8,715.91

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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.