Home / 13,476.85-20,206.51-6,456.69

Finding the Fourth Proportional to 13,476.85, 20,206.51 and 6,456.69

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Solution

The fourth proportional to 13,476.85, 20,206.51 and 6,456.69 is: 9,680.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,476.85 : 20,206.51 = 6,456.69 : x
  2. Step 2: Convert to fraction form
    13,476.85/20,206.51 = 6,456.69/x
  3. Step 3: Cross multiply
    13,476.85x = 20,206.51 × 6,456.69
  4. Step 4: Simplify right side
    13,476.85x = 130,467,171.05
  5. Step 5: Solve for x
    x = 130,467,171.05/13,476.85
  6. Step 6: Final answer
    x = 9,680.84

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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.