Home / 12,011.45-18,017.18-3,246.59

Finding the Fourth Proportional to 12,011.45, 18,017.18 and 3,246.59

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Solution

The fourth proportional to 12,011.45, 18,017.18 and 3,246.59 is: 4,869.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.45 : 18,017.18 = 3,246.59 : x
  2. Step 2: Convert to fraction form
    12,011.45/18,017.18 = 3,246.59/x
  3. Step 3: Cross multiply
    12,011.45x = 18,017.18 × 3,246.59
  4. Step 4: Simplify right side
    12,011.45x = 58,494,396.42
  5. Step 5: Solve for x
    x = 58,494,396.42/12,011.45
  6. Step 6: Final answer
    x = 4,869.89

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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.