Home / 12,278.34-18,405.18-3,952.24

Finding the Fourth Proportional to 12,278.34, 18,405.18 and 3,952.24

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Solution

The fourth proportional to 12,278.34, 18,405.18 and 3,952.24 is: 5,924.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.34 : 18,405.18 = 3,952.24 : x
  2. Step 2: Convert to fraction form
    12,278.34/18,405.18 = 3,952.24/x
  3. Step 3: Cross multiply
    12,278.34x = 18,405.18 × 3,952.24
  4. Step 4: Simplify right side
    12,278.34x = 72,741,688.60
  5. Step 5: Solve for x
    x = 72,741,688.60/12,278.34
  6. Step 6: Final answer
    x = 5,924.39

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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.