Home / 12,561.38-18,845.54-5,546.98

Finding the Fourth Proportional to 12,561.38, 18,845.54 and 5,546.98

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Solution

The fourth proportional to 12,561.38, 18,845.54 and 5,546.98 is: 8,322.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.38 : 18,845.54 = 5,546.98 : x
  2. Step 2: Convert to fraction form
    12,561.38/18,845.54 = 5,546.98/x
  3. Step 3: Cross multiply
    12,561.38x = 18,845.54 × 5,546.98
  4. Step 4: Simplify right side
    12,561.38x = 104,535,833.47
  5. Step 5: Solve for x
    x = 104,535,833.47/12,561.38
  6. Step 6: Final answer
    x = 8,322.00

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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.