Home / 13,476.70-20,215.05-8,206.30

Finding the Fourth Proportional to 13,476.70, 20,215.05 and 8,206.30

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Solution

The fourth proportional to 13,476.70, 20,215.05 and 8,206.30 is: 12,309.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,476.70 : 20,215.05 = 8,206.30 : x
  2. Step 2: Convert to fraction form
    13,476.70/20,215.05 = 8,206.30/x
  3. Step 3: Cross multiply
    13,476.70x = 20,215.05 × 8,206.30
  4. Step 4: Simplify right side
    13,476.70x = 165,890,764.82
  5. Step 5: Solve for x
    x = 165,890,764.82/13,476.70
  6. Step 6: Final answer
    x = 12,309.45

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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.