Home / 13,612.19-20,390.94-6,206.46

Finding the Fourth Proportional to 13,612.19, 20,390.94 and 6,206.46

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Solution

The fourth proportional to 13,612.19, 20,390.94 and 6,206.46 is: 9,297.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.19 : 20,390.94 = 6,206.46 : x
  2. Step 2: Convert to fraction form
    13,612.19/20,390.94 = 6,206.46/x
  3. Step 3: Cross multiply
    13,612.19x = 20,390.94 × 6,206.46
  4. Step 4: Simplify right side
    13,612.19x = 126,555,420.49
  5. Step 5: Solve for x
    x = 126,555,420.49/13,612.19
  6. Step 6: Final answer
    x = 9,297.22

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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.