Home / 12,473.12-18,709.64-3,239.12

Finding the Fourth Proportional to 12,473.12, 18,709.64 and 3,239.12

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Solution

The fourth proportional to 12,473.12, 18,709.64 and 3,239.12 is: 4,858.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,473.12 : 18,709.64 = 3,239.12 : x
  2. Step 2: Convert to fraction form
    12,473.12/18,709.64 = 3,239.12/x
  3. Step 3: Cross multiply
    12,473.12x = 18,709.64 × 3,239.12
  4. Step 4: Simplify right side
    12,473.12x = 60,602,752.92
  5. Step 5: Solve for x
    x = 60,602,752.92/12,473.12
  6. Step 6: Final answer
    x = 4,858.67

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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.