Home / 7,452.60-11,178.78-3,012.30

Finding the Fourth Proportional to 7,452.60, 11,178.78 and 3,012.30

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Solution

The fourth proportional to 7,452.60, 11,178.78 and 3,012.30 is: 4,518.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,452.60 : 11,178.78 = 3,012.30 : x
  2. Step 2: Convert to fraction form
    7,452.60/11,178.78 = 3,012.30/x
  3. Step 3: Cross multiply
    7,452.60x = 11,178.78 × 3,012.30
  4. Step 4: Simplify right side
    7,452.60x = 33,673,838.99
  5. Step 5: Solve for x
    x = 33,673,838.99/7,452.60
  6. Step 6: Final answer
    x = 4,518.40

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Half scale
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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.