Home / 12,286.40-18,423.06-4,887.04

Finding the Fourth Proportional to 12,286.40, 18,423.06 and 4,887.04

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Solution

The fourth proportional to 12,286.40, 18,423.06 and 4,887.04 is: 7,327.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.40 : 18,423.06 = 4,887.04 : x
  2. Step 2: Convert to fraction form
    12,286.40/18,423.06 = 4,887.04/x
  3. Step 3: Cross multiply
    12,286.40x = 18,423.06 × 4,887.04
  4. Step 4: Simplify right side
    12,286.40x = 90,034,231.14
  5. Step 5: Solve for x
    x = 90,034,231.14/12,286.40
  6. Step 6: Final answer
    x = 7,327.96

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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.