Home / 7,459.49-11,188.40-1,912.96

Finding the Fourth Proportional to 7,459.49, 11,188.40 and 1,912.96

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Solution

The fourth proportional to 7,459.49, 11,188.40 and 1,912.96 is: 2,869.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,459.49 : 11,188.40 = 1,912.96 : x
  2. Step 2: Convert to fraction form
    7,459.49/11,188.40 = 1,912.96/x
  3. Step 3: Cross multiply
    7,459.49x = 11,188.40 × 1,912.96
  4. Step 4: Simplify right side
    7,459.49x = 21,403,002.93
  5. Step 5: Solve for x
    x = 21,403,002.93/7,459.49
  6. Step 6: Final answer
    x = 2,869.23

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.