Home / 7,475.04-11,142.20-7,236.30

Finding the Fourth Proportional to 7,475.04, 11,142.20 and 7,236.30

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Solution

The fourth proportional to 7,475.04, 11,142.20 and 7,236.30 is: 10,786.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.04 : 11,142.20 = 7,236.30 : x
  2. Step 2: Convert to fraction form
    7,475.04/11,142.20 = 7,236.30/x
  3. Step 3: Cross multiply
    7,475.04x = 11,142.20 × 7,236.30
  4. Step 4: Simplify right side
    7,475.04x = 80,628,301.86
  5. Step 5: Solve for x
    x = 80,628,301.86/7,475.04
  6. Step 6: Final answer
    x = 10,786.34

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