Home / 13,206.44-18,225.46-7,900.23

Finding the Fourth Proportional to 13,206.44, 18,225.46 and 7,900.23

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Solution

The fourth proportional to 13,206.44, 18,225.46 and 7,900.23 is: 10,902.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.44 : 18,225.46 = 7,900.23 : x
  2. Step 2: Convert to fraction form
    13,206.44/18,225.46 = 7,900.23/x
  3. Step 3: Cross multiply
    13,206.44x = 18,225.46 × 7,900.23
  4. Step 4: Simplify right side
    13,206.44x = 143,985,359.64
  5. Step 5: Solve for x
    x = 143,985,359.64/13,206.44
  6. Step 6: Final answer
    x = 10,902.66

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Double scale
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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.