Home / 13,206.38-18,226.98-7,902.23

Finding the Fourth Proportional to 13,206.38, 18,226.98 and 7,902.23

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Solution

The fourth proportional to 13,206.38, 18,226.98 and 7,902.23 is: 10,906.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.38 : 18,226.98 = 7,902.23 : x
  2. Step 2: Convert to fraction form
    13,206.38/18,226.98 = 7,902.23/x
  3. Step 3: Cross multiply
    13,206.38x = 18,226.98 × 7,902.23
  4. Step 4: Simplify right side
    13,206.38x = 144,033,697.03
  5. Step 5: Solve for x
    x = 144,033,697.03/13,206.38
  6. Step 6: Final answer
    x = 10,906.38

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Half scale
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Double scale
Find fourth proportional to 13,207.38, 18,228.36 and 7,903.23
Similar ratio
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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.