Home / 12,273.81-18,408.30-4,777.39

Finding the Fourth Proportional to 12,273.81, 18,408.30 and 4,777.39

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Solution

The fourth proportional to 12,273.81, 18,408.30 and 4,777.39 is: 7,165.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,273.81 : 18,408.30 = 4,777.39 : x
  2. Step 2: Convert to fraction form
    12,273.81/18,408.30 = 4,777.39/x
  3. Step 3: Cross multiply
    12,273.81x = 18,408.30 × 4,777.39
  4. Step 4: Simplify right side
    12,273.81x = 87,943,628.34
  5. Step 5: Solve for x
    x = 87,943,628.34/12,273.81
  6. Step 6: Final answer
    x = 7,165.14

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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.