Home / 12,228.47-18,342.70-2,994.47

Finding the Fourth Proportional to 12,228.47, 18,342.70 and 2,994.47

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Solution

The fourth proportional to 12,228.47, 18,342.70 and 2,994.47 is: 4,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228.47 : 18,342.70 = 2,994.47 : x
  2. Step 2: Convert to fraction form
    12,228.47/18,342.70 = 2,994.47/x
  3. Step 3: Cross multiply
    12,228.47x = 18,342.70 × 2,994.47
  4. Step 4: Simplify right side
    12,228.47x = 54,926,651.30
  5. Step 5: Solve for x
    x = 54,926,651.30/12,228.47
  6. Step 6: Final answer
    x = 4,491.70

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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.