Home / 12,311.61-18,473.44-7,630.37

Finding the Fourth Proportional to 12,311.61, 18,473.44 and 7,630.37

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Solution

The fourth proportional to 12,311.61, 18,473.44 and 7,630.37 is: 11,449.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,311.61 : 18,473.44 = 7,630.37 : x
  2. Step 2: Convert to fraction form
    12,311.61/18,473.44 = 7,630.37/x
  3. Step 3: Cross multiply
    12,311.61x = 18,473.44 × 7,630.37
  4. Step 4: Simplify right side
    12,311.61x = 140,959,182.37
  5. Step 5: Solve for x
    x = 140,959,182.37/12,311.61
  6. Step 6: Final answer
    x = 11,449.29

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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.