Home / 13,454.29-18,555.85-11,942.96

Finding the Fourth Proportional to 13,454.29, 18,555.85 and 11,942.96

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Solution

The fourth proportional to 13,454.29, 18,555.85 and 11,942.96 is: 16,471.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,454.29 : 18,555.85 = 11,942.96 : x
  2. Step 2: Convert to fraction form
    13,454.29/18,555.85 = 11,942.96/x
  3. Step 3: Cross multiply
    13,454.29x = 18,555.85 × 11,942.96
  4. Step 4: Simplify right side
    13,454.29x = 221,611,621.82
  5. Step 5: Solve for x
    x = 221,611,621.82/13,454.29
  6. Step 6: Final answer
    x = 16,471.45

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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.