Home / 12,174.09-18,246.55-4,373.79

Finding the Fourth Proportional to 12,174.09, 18,246.55 and 4,373.79

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Solution

The fourth proportional to 12,174.09, 18,246.55 and 4,373.79 is: 6,555.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,174.09 : 18,246.55 = 4,373.79 : x
  2. Step 2: Convert to fraction form
    12,174.09/18,246.55 = 4,373.79/x
  3. Step 3: Cross multiply
    12,174.09x = 18,246.55 × 4,373.79
  4. Step 4: Simplify right side
    12,174.09x = 79,806,577.92
  5. Step 5: Solve for x
    x = 79,806,577.92/12,174.09
  6. Step 6: Final answer
    x = 6,555.45

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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.