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Finding the Fourth Proportional to 7,367.70, 11,051.55 and 4,087.20

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Solution

The fourth proportional to 7,367.70, 11,051.55 and 4,087.20 is: 6,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,367.70 : 11,051.55 = 4,087.20 : x
  2. Step 2: Convert to fraction form
    7,367.70/11,051.55 = 4,087.20/x
  3. Step 3: Cross multiply
    7,367.70x = 11,051.55 × 4,087.20
  4. Step 4: Simplify right side
    7,367.70x = 45,169,895.16
  5. Step 5: Solve for x
    x = 45,169,895.16/7,367.70
  6. Step 6: Final answer
    x = 6,130.80

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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.