Home / 11,821.68-16,195.64-11,378.52

Finding the Fourth Proportional to 11,821.68, 16,195.64 and 11,378.52

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Solution

The fourth proportional to 11,821.68, 16,195.64 and 11,378.52 is: 15,588.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.68 : 16,195.64 = 11,378.52 : x
  2. Step 2: Convert to fraction form
    11,821.68/16,195.64 = 11,378.52/x
  3. Step 3: Cross multiply
    11,821.68x = 16,195.64 × 11,378.52
  4. Step 4: Simplify right side
    11,821.68x = 184,282,356.76
  5. Step 5: Solve for x
    x = 184,282,356.76/11,821.68
  6. Step 6: Final answer
    x = 15,588.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.