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Finding the Fourth Proportional to 8,011.50, 11,945.55 and 8,000.56

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Solution

The fourth proportional to 8,011.50, 11,945.55 and 8,000.56 is: 11,929.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,011.50 : 11,945.55 = 8,000.56 : x
  2. Step 2: Convert to fraction form
    8,011.50/11,945.55 = 8,000.56/x
  3. Step 3: Cross multiply
    8,011.50x = 11,945.55 × 8,000.56
  4. Step 4: Simplify right side
    8,011.50x = 95,571,089.51
  5. Step 5: Solve for x
    x = 95,571,089.51/8,011.50
  6. Step 6: Final answer
    x = 11,929.24

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