Home / 12,338.71-18,496.87-6,408.67

Finding the Fourth Proportional to 12,338.71, 18,496.87 and 6,408.67

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Solution

The fourth proportional to 12,338.71, 18,496.87 and 6,408.67 is: 9,607.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,338.71 : 18,496.87 = 6,408.67 : x
  2. Step 2: Convert to fraction form
    12,338.71/18,496.87 = 6,408.67/x
  3. Step 3: Cross multiply
    12,338.71x = 18,496.87 × 6,408.67
  4. Step 4: Simplify right side
    12,338.71x = 118,540,211.34
  5. Step 5: Solve for x
    x = 118,540,211.34/12,338.71
  6. Step 6: Final answer
    x = 9,607.18

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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.