Home / 12,313.85-18,465.90-4,518.41

Finding the Fourth Proportional to 12,313.85, 18,465.90 and 4,518.41

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Solution

The fourth proportional to 12,313.85, 18,465.90 and 4,518.41 is: 6,775.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.85 : 18,465.90 = 4,518.41 : x
  2. Step 2: Convert to fraction form
    12,313.85/18,465.90 = 4,518.41/x
  3. Step 3: Cross multiply
    12,313.85x = 18,465.90 × 4,518.41
  4. Step 4: Simplify right side
    12,313.85x = 83,436,507.22
  5. Step 5: Solve for x
    x = 83,436,507.22/12,313.85
  6. Step 6: Final answer
    x = 6,775.83

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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.