Home / 12,011.21-18,017.16-3,246.20

Finding the Fourth Proportional to 12,011.21, 18,017.16 and 3,246.20

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Solution

The fourth proportional to 12,011.21, 18,017.16 and 3,246.20 is: 4,869.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.21 : 18,017.16 = 3,246.20 : x
  2. Step 2: Convert to fraction form
    12,011.21/18,017.16 = 3,246.20/x
  3. Step 3: Cross multiply
    12,011.21x = 18,017.16 × 3,246.20
  4. Step 4: Simplify right side
    12,011.21x = 58,487,214.71
  5. Step 5: Solve for x
    x = 58,487,214.71/12,011.21
  6. Step 6: Final answer
    x = 4,869.39

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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.