Home / 12,365.49-18,554.33-5,790.54

Finding the Fourth Proportional to 12,365.49, 18,554.33 and 5,790.54

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Solution

The fourth proportional to 12,365.49, 18,554.33 and 5,790.54 is: 8,688.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.49 : 18,554.33 = 5,790.54 : x
  2. Step 2: Convert to fraction form
    12,365.49/18,554.33 = 5,790.54/x
  3. Step 3: Cross multiply
    12,365.49x = 18,554.33 × 5,790.54
  4. Step 4: Simplify right side
    12,365.49x = 107,439,561.09
  5. Step 5: Solve for x
    x = 107,439,561.09/12,365.49
  6. Step 6: Final answer
    x = 8,688.66

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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.