Home / 12,867.28-19,304.57-6,631.86

Finding the Fourth Proportional to 12,867.28, 19,304.57 and 6,631.86

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Solution

The fourth proportional to 12,867.28, 19,304.57 and 6,631.86 is: 9,949.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867.28 : 19,304.57 = 6,631.86 : x
  2. Step 2: Convert to fraction form
    12,867.28/19,304.57 = 6,631.86/x
  3. Step 3: Cross multiply
    12,867.28x = 19,304.57 × 6,631.86
  4. Step 4: Simplify right side
    12,867.28x = 128,025,205.60
  5. Step 5: Solve for x
    x = 128,025,205.60/12,867.28
  6. Step 6: Final answer
    x = 9,949.67

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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.