Home / 13,427.74-18,530.22-8,121.01

Finding the Fourth Proportional to 13,427.74, 18,530.22 and 8,121.01

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Solution

The fourth proportional to 13,427.74, 18,530.22 and 8,121.01 is: 11,206.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.74 : 18,530.22 = 8,121.01 : x
  2. Step 2: Convert to fraction form
    13,427.74/18,530.22 = 8,121.01/x
  3. Step 3: Cross multiply
    13,427.74x = 18,530.22 × 8,121.01
  4. Step 4: Simplify right side
    13,427.74x = 150,484,101.92
  5. Step 5: Solve for x
    x = 150,484,101.92/13,427.74
  6. Step 6: Final answer
    x = 11,206.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.