Home / 12,007.88-18,012.68-4,612.33

Finding the Fourth Proportional to 12,007.88, 18,012.68 and 4,612.33

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Solution

The fourth proportional to 12,007.88, 18,012.68 and 4,612.33 is: 6,918.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,007.88 : 18,012.68 = 4,612.33 : x
  2. Step 2: Convert to fraction form
    12,007.88/18,012.68 = 4,612.33/x
  3. Step 3: Cross multiply
    12,007.88x = 18,012.68 × 4,612.33
  4. Step 4: Simplify right side
    12,007.88x = 83,080,424.34
  5. Step 5: Solve for x
    x = 83,080,424.34/12,007.88
  6. Step 6: Final answer
    x = 6,918.83

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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.