Home / 18,516.96-27,776.79-5,369.40

Finding the Fourth Proportional to 18,516.96, 27,776.79 and 5,369.40

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Solution

The fourth proportional to 18,516.96, 27,776.79 and 5,369.40 is: 8,054.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.96 : 27,776.79 = 5,369.40 : x
  2. Step 2: Convert to fraction form
    18,516.96/27,776.79 = 5,369.40/x
  3. Step 3: Cross multiply
    18,516.96x = 27,776.79 × 5,369.40
  4. Step 4: Simplify right side
    18,516.96x = 149,144,696.23
  5. Step 5: Solve for x
    x = 149,144,696.23/18,516.96
  6. Step 6: Final answer
    x = 8,054.49

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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.