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Finding the Fourth Proportional to 8,007.68, 12,011.98 and 2,164.76

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Solution

The fourth proportional to 8,007.68, 12,011.98 and 2,164.76 is: 3,247.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,007.68 : 12,011.98 = 2,164.76 : x
  2. Step 2: Convert to fraction form
    8,007.68/12,011.98 = 2,164.76/x
  3. Step 3: Cross multiply
    8,007.68x = 12,011.98 × 2,164.76
  4. Step 4: Simplify right side
    8,007.68x = 26,003,053.82
  5. Step 5: Solve for x
    x = 26,003,053.82/8,007.68
  6. Step 6: Final answer
    x = 3,247.26

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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.