Home / 16,113.72-22,195.50-11,389.88

Finding the Fourth Proportional to 16,113.72, 22,195.50 and 11,389.88

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Solution

The fourth proportional to 16,113.72, 22,195.50 and 11,389.88 is: 15,688.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,113.72 : 22,195.50 = 11,389.88 : x
  2. Step 2: Convert to fraction form
    16,113.72/22,195.50 = 11,389.88/x
  3. Step 3: Cross multiply
    16,113.72x = 22,195.50 × 11,389.88
  4. Step 4: Simplify right side
    16,113.72x = 252,804,081.54
  5. Step 5: Solve for x
    x = 252,804,081.54/16,113.72
  6. Step 6: Final answer
    x = 15,688.75

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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.