Home / 12,339.39-18,512.13-3,575.19

Finding the Fourth Proportional to 12,339.39, 18,512.13 and 3,575.19

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Solution

The fourth proportional to 12,339.39, 18,512.13 and 3,575.19 is: 5,363.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.39 : 18,512.13 = 3,575.19 : x
  2. Step 2: Convert to fraction form
    12,339.39/18,512.13 = 3,575.19/x
  3. Step 3: Cross multiply
    12,339.39x = 18,512.13 × 3,575.19
  4. Step 4: Simplify right side
    12,339.39x = 66,184,382.05
  5. Step 5: Solve for x
    x = 66,184,382.05/12,339.39
  6. Step 6: Final answer
    x = 5,363.67

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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.