Home / 12,174.93-18,255.35-4,770.72

Finding the Fourth Proportional to 12,174.93, 18,255.35 and 4,770.72

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Solution

The fourth proportional to 12,174.93, 18,255.35 and 4,770.72 is: 7,153.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,174.93 : 18,255.35 = 4,770.72 : x
  2. Step 2: Convert to fraction form
    12,174.93/18,255.35 = 4,770.72/x
  3. Step 3: Cross multiply
    12,174.93x = 18,255.35 × 4,770.72
  4. Step 4: Simplify right side
    12,174.93x = 87,091,048.22
  5. Step 5: Solve for x
    x = 87,091,048.22/12,174.93
  6. Step 6: Final answer
    x = 7,153.31

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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.