Home / 12,405.96-18,589.50-10,549.44

Finding the Fourth Proportional to 12,405.96, 18,589.50 and 10,549.44

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Solution

The fourth proportional to 12,405.96, 18,589.50 and 10,549.44 is: 15,807.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405.96 : 18,589.50 = 10,549.44 : x
  2. Step 2: Convert to fraction form
    12,405.96/18,589.50 = 10,549.44/x
  3. Step 3: Cross multiply
    12,405.96x = 18,589.50 × 10,549.44
  4. Step 4: Simplify right side
    12,405.96x = 196,108,814.88
  5. Step 5: Solve for x
    x = 196,108,814.88/12,405.96
  6. Step 6: Final answer
    x = 15,807.63

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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.